diff options
| -rw-r--r-- | include/sound/control.h | 5 | ||||
| -rw-r--r-- | include/sound/core.h | 2 | ||||
| -rw-r--r-- | include/sound/pcm.h | 23 | ||||
| -rw-r--r-- | sound/core/control.c | 41 | ||||
| -rw-r--r-- | sound/core/device.c | 8 | ||||
| -rw-r--r-- | sound/core/hwdep.c | 2 | ||||
| -rw-r--r-- | sound/core/info.c | 16 | ||||
| -rw-r--r-- | sound/core/init.c | 16 | ||||
| -rw-r--r-- | sound/core/isadma.c | 2 | ||||
| -rw-r--r-- | sound/core/jack.c | 6 | ||||
| -rw-r--r-- | sound/core/memalloc.c | 20 | ||||
| -rw-r--r-- | sound/core/memory.c | 4 | ||||
| -rw-r--r-- | sound/core/pcm.c | 6 | ||||
| -rw-r--r-- | sound/core/pcm_lib.c | 54 | ||||
| -rw-r--r-- | sound/core/pcm_memory.c | 19 | ||||
| -rw-r--r-- | sound/core/pcm_misc.c | 28 | ||||
| -rw-r--r-- | sound/core/pcm_native.c | 13 | ||||
| -rw-r--r-- | sound/core/rawmidi.c | 14 | ||||
| -rw-r--r-- | sound/core/sound.c | 7 | ||||
| -rw-r--r-- | sound/core/vmaster.c | 7 | ||||
| -rw-r--r-- | sound/drivers/mpu401/mpu401_uart.c | 6 | ||||
| -rw-r--r-- | sound/pci/ac97/ac97_codec.c | 16 | ||||
| -rw-r--r-- | sound/pci/ac97/ac97_pcm.c | 10 | ||||
| -rw-r--r-- | sound/sound_core.c | 22 |
24 files changed, 221 insertions, 126 deletions
diff --git a/include/sound/control.h b/include/sound/control.h index 8332e865c75..34bc93d80d5 100644 --- a/include/sound/control.h +++ b/include/sound/control.h @@ -189,7 +189,6 @@ int _snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave, * * Add a virtual slave control to the given master element created via * snd_ctl_create_virtual_master() beforehand. - * Returns zero if successful or a negative error code. * * All slaves must be the same type (returning the same information * via info callback). The function doesn't check it, so it's your @@ -199,6 +198,8 @@ int _snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave, * at most two channels, * logarithmic volume control (dB level) thus no linear volume, * master can only attenuate the volume without gain + * + * Return: Zero if successful or a negative error code. */ static inline int snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave) @@ -219,6 +220,8 @@ snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave) * When the control peeks the hardware values directly and the value * can be changed by other means than the put callback of the element, * this function should be used to keep the value always up-to-date. + * + * Return: Zero if successful or a negative error code. */ static inline int snd_ctl_add_slave_uncached(struct snd_kcontrol *master, diff --git a/include/sound/core.h b/include/sound/core.h index a63680b9819..5bfe5136441 100644 --- a/include/sound/core.h +++ b/include/sound/core.h @@ -229,7 +229,7 @@ int snd_register_device_for_dev(int type, struct snd_card *card, * This function uses the card's device pointer to link to the * correct &struct device. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ static inline int snd_register_device(int type, struct snd_card *card, int dev, const struct file_operations *f_ops, diff --git a/include/sound/pcm.h b/include/sound/pcm.h index 45c1981c9ca..aa7b0a8385c 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -659,7 +659,7 @@ static inline snd_pcm_sframes_t snd_pcm_capture_hw_avail(struct snd_pcm_runtime * * Checks whether enough free space is available on the playback buffer. * - * Returns non-zero if available, or zero if not. + * Return: Non-zero if available, or zero if not. */ static inline int snd_pcm_playback_ready(struct snd_pcm_substream *substream) { @@ -673,7 +673,7 @@ static inline int snd_pcm_playback_ready(struct snd_pcm_substream *substream) * * Checks whether enough capture data is available on the capture buffer. * - * Returns non-zero if available, or zero if not. + * Return: Non-zero if available, or zero if not. */ static inline int snd_pcm_capture_ready(struct snd_pcm_substream *substream) { @@ -685,10 +685,10 @@ static inline int snd_pcm_capture_ready(struct snd_pcm_substream *substream) * snd_pcm_playback_data - check whether any data exists on the playback buffer * @substream: the pcm substream instance * - * Checks whether any data exists on the playback buffer. If stop_threshold - * is bigger or equal to boundary, then this function returns always non-zero. + * Checks whether any data exists on the playback buffer. * - * Returns non-zero if exists, or zero if not. + * Return: Non-zero if any data exists, or zero if not. If stop_threshold + * is bigger or equal to boundary, then this function returns always non-zero. */ static inline int snd_pcm_playback_data(struct snd_pcm_substream *substream) { @@ -705,7 +705,7 @@ static inline int snd_pcm_playback_data(struct snd_pcm_substream *substream) * * Checks whether the playback buffer is empty. * - * Returns non-zero if empty, or zero if not. + * Return: Non-zero if empty, or zero if not. */ static inline int snd_pcm_playback_empty(struct snd_pcm_substream *substream) { @@ -719,7 +719,7 @@ static inline int snd_pcm_playback_empty(struct snd_pcm_substream *substream) * * Checks whether the capture buffer is empty. * - * Returns non-zero if empty, or zero if not. + * Return: Non-zero if empty, or zero if not. */ static inline int snd_pcm_capture_empty(struct snd_pcm_substream *substream) { @@ -852,7 +852,7 @@ int snd_pcm_format_big_endian(snd_pcm_format_t format); * snd_pcm_format_cpu_endian - Check the PCM format is CPU-endian * @format: the format to check * - * Returns 1 if the given PCM format is CPU-endian, 0 if + * Return: 1 if the given PCM format is CPU-endian, 0 if * opposite, or a negative error code if endian not specified. */ int snd_pcm_format_cpu_endian(snd_pcm_format_t format); @@ -963,7 +963,7 @@ struct page *snd_pcm_lib_get_vmalloc_page(struct snd_pcm_substream *substream, * contiguous in kernel virtual space, but not in physical memory. Use this * if the buffer is accessed by kernel code but not by device DMA. * - * Returns 1 if the buffer was changed, 0 if not changed, or a negative error + * Return: 1 if the buffer was changed, 0 if not changed, or a negative error * code. */ static int snd_pcm_lib_alloc_vmalloc_buffer @@ -975,6 +975,9 @@ static int snd_pcm_lib_alloc_vmalloc_buffer * * This function works like snd_pcm_lib_alloc_vmalloc_buffer(), but uses * vmalloc_32(), i.e., the pages are allocated from 32-bit-addressable memory. + * + * Return: 1 if the buffer was changed, 0 if not changed, or a negative error + * code. */ static int snd_pcm_lib_alloc_vmalloc_32_buffer (struct snd_pcm_substream *substream, size_t size); @@ -1070,6 +1073,8 @@ const char *snd_pcm_format_name(snd_pcm_format_t format); /** * snd_pcm_stream_str - Get a string naming the direction of a stream * @substream: the pcm substream instance + * + * Return: A string naming the direction of the stream. */ static inline const char *snd_pcm_stream_str(struct snd_pcm_substream *substream) { diff --git a/sound/core/control.c b/sound/core/control.c index 8c7c2c9bba6..d8aa206e8bd 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -190,7 +190,7 @@ EXPORT_SYMBOL(snd_ctl_notify); * Allocates a new struct snd_kcontrol instance and copies the given template * to the new instance. It does not copy volatile data (access). * - * Returns the pointer of the new instance, or NULL on failure. + * Return: The pointer of the new instance, or %NULL on failure. */ static struct snd_kcontrol *snd_ctl_new(struct snd_kcontrol *control, unsigned int access) @@ -224,7 +224,7 @@ static struct snd_kcontrol *snd_ctl_new(struct snd_kcontrol *control, * template. When the access field of ncontrol is 0, it's assumed as * READWRITE access. When the count field is 0, it's assumes as one. * - * Returns the pointer of the newly generated instance, or NULL on failure. + * Return: The pointer of the newly generated instance, or %NULL on failure. */ struct snd_kcontrol *snd_ctl_new1(const struct snd_kcontrol_new *ncontrol, void *private_data) @@ -322,9 +322,10 @@ static int snd_ctl_find_hole(struct snd_card *card, unsigned int count) * snd_ctl_new1() to the given card. Assigns also an unique * numid used for fast search. * - * Returns zero if successful, or a negative error code on failure. - * * It frees automatically the control which cannot be added. + * + * Return: Zero if successful, or a negative error code on failure. + * */ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol) { @@ -380,9 +381,9 @@ EXPORT_SYMBOL(snd_ctl_add); * and the add_on_replace flag is set, the control is added. If the * control exists, it is destroyed first. * - * Returns zero if successful, or a negative error code on failure. - * * It frees automatically the control which cannot be added or replaced. + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_ctl_replace(struct snd_card *card, struct snd_kcontrol *kcontrol, bool add_on_replace) @@ -442,8 +443,8 @@ EXPORT_SYMBOL(snd_ctl_replace); * Removes the control from the card and then releases the instance. * You don't need to call snd_ctl_free_one(). You must be in * the write lock - down_write(&card->controls_rwsem). - * - * Returns 0 if successful, or a negative error code on failure. + * + * Return: 0 if successful, or a negative error code on failure. */ int snd_ctl_remove(struct snd_card *card, struct snd_kcontrol *kcontrol) { @@ -470,8 +471,8 @@ EXPORT_SYMBOL(snd_ctl_remove); * * Finds the control instance with the given id, removes it from the * card list and releases it. - * - * Returns 0 if successful, or a negative error code on failure. + * + * Return: 0 if successful, or a negative error code on failure. */ int snd_ctl_remove_id(struct snd_card *card, struct snd_ctl_elem_id *id) { @@ -498,8 +499,8 @@ EXPORT_SYMBOL(snd_ctl_remove_id); * * Finds the control instance with the given id, removes it from the * card list and releases it. - * - * Returns 0 if successful, or a negative error code on failure. + * + * Return: 0 if successful, or a negative error code on failure. */ static int snd_ctl_remove_user_ctl(struct snd_ctl_file * file, struct snd_ctl_elem_id *id) @@ -541,7 +542,7 @@ error: * Finds the control instance with the given id, and activate or * inactivate the control together with notification, if changed. * - * Returns 0 if unchanged, 1 if changed, or a negative error code on failure. + * Return: 0 if unchanged, 1 if changed, or a negative error code on failure. */ int snd_ctl_activate_id(struct snd_card *card, struct snd_ctl_elem_id *id, int active) @@ -587,7 +588,7 @@ EXPORT_SYMBOL_GPL(snd_ctl_activate_id); * Finds the control with the old id from the card, and replaces the * id with the new one. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_ctl_rename_id(struct snd_card *card, struct snd_ctl_elem_id *src_id, struct snd_ctl_elem_id *dst_id) @@ -616,10 +617,11 @@ EXPORT_SYMBOL(snd_ctl_rename_id); * * Finds the control instance with the given number-id from the card. * - * Returns the pointer of the instance if found, or NULL if not. - * * The caller must down card->controls_rwsem before calling this function * (if the race condition can happen). + * + * Return: The pointer of the instance if found, or %NULL if not. + * */ struct snd_kcontrol *snd_ctl_find_numid(struct snd_card *card, unsigned int numid) { @@ -643,10 +645,11 @@ EXPORT_SYMBOL(snd_ctl_find_numid); * * Finds the control instance with the given id from the card. * - * Returns the pointer of the instance if found, or NULL if not. - * * The caller must down card->controls_rwsem before calling this function * (if the race condition can happen). + * + * Return: The pointer of the instance if found, or %NULL if not. + * */ struct snd_kcontrol *snd_ctl_find_id(struct snd_card *card, struct snd_ctl_elem_id *id) @@ -1710,6 +1713,8 @@ EXPORT_SYMBOL(snd_ctl_boolean_stereo_info); * Sets all required fields in @info to their appropriate values. * If the control's accessibility is not the default (readable and writable), * the caller has to fill @info->access. + * + * Return: Zero. */ int snd_ctl_enum_info(struct snd_ctl_elem_info *info, unsigned int channels, unsigned int items, const char *const names[]) diff --git a/sound/core/device.c b/sound/core/device.c index f03cb5444a5..df88defed17 100644 --- a/sound/core/device.c +++ b/sound/core/device.c @@ -39,7 +39,7 @@ * The data pointer plays a role as the identifier, too, so the * pointer address must be unique and unchanged. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_device_new(struct snd_card *card, snd_device_type_t type, void *device_data, struct snd_device_ops *ops) @@ -73,7 +73,7 @@ EXPORT_SYMBOL(snd_device_new); * callbacks, dev_disconnect and dev_free, corresponding to the state. * Then release the device. * - * Returns zero if successful, or a negative error code on failure or if the + * Return: Zero if successful, or a negative error code on failure or if the * device not found. */ int snd_device_free(struct snd_card *card, void *device_data) @@ -116,7 +116,7 @@ EXPORT_SYMBOL(snd_device_free); * * Usually called from snd_card_disconnect(). * - * Returns zero if successful, or a negative error code on failure or if the + * Return: Zero if successful, or a negative error code on failure or if the * device not found. */ int snd_device_disconnect(struct snd_card *card, void *device_data) @@ -151,7 +151,7 @@ int snd_device_disconnect(struct snd_card *card, void *device_data) * but it can be called later if any new devices are created after * invocation of snd_card_register(). * - * Returns zero if successful, or a negative error code on failure or if the + * Return: Zero if successful, or a negative error code on failure or if the * device not found. */ int snd_device_register(struct snd_card *card, void *device_data) diff --git a/sound/core/hwdep.c b/sound/core/hwdep.c index 3f7f6628cf7..d105073298c 100644 --- a/sound/core/hwdep.c +++ b/sound/core/hwdep.c @@ -356,7 +356,7 @@ static const struct file_operations snd_hwdep_f_ops = * The callbacks (hwdep->ops) must be set on the returned instance * after this call manually by the caller. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_hwdep_new(struct snd_card *card, char *id, int device, struct snd_hwdep **rhwdep) diff --git a/sound/core/info.c b/sound/core/info.c index 5bb97e7d325..db308dbc891 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -105,7 +105,7 @@ static int resize_info_buffer(struct snd_info_buffer *buffer, * * Outputs the string on the procfs buffer just like printf(). * - * Returns the size of output string. + * Return: The size of output string, or a negative error code. */ int snd_iprintf(struct snd_info_buffer *buffer, const char *fmt, ...) { @@ -694,7 +694,7 @@ int snd_info_card_free(struct snd_card *card) * * Reads one line from the buffer and stores the string. * - * Returns zero if successful, or 1 if error or EOF. + * Return: Zero if successful, or 1 if error or EOF. */ int snd_info_get_line(struct snd_info_buffer *buffer, char *line, int len) { @@ -735,7 +735,7 @@ EXPORT_SYMBOL(snd_info_get_line); * Parses the original string and copy a token to the given * string buffer. * - * Returns the updated pointer of the original string so that + * Return: The updated pointer of the original string so that * it can be used for the next call. */ const char *snd_info_get_str(char *dest, const char *src, int len) @@ -774,7 +774,7 @@ EXPORT_SYMBOL(snd_info_get_str); * Usually called from other functions such as * snd_info_create_card_entry(). * - * Returns the pointer of the new instance, or NULL on failure. + * Return: The pointer of the new instance, or %NULL on failure. */ static struct snd_info_entry *snd_info_create_entry(const char *name) { @@ -803,7 +803,7 @@ static struct snd_info_entry *snd_info_create_entry(const char *name) * * Creates a new info entry and assigns it to the given module. * - * Returns the pointer of the new instance, or NULL on failure. + * Return: The pointer of the new instance, or %NULL on failure. */ struct snd_info_entry *snd_info_create_module_entry(struct module * module, const char *name, @@ -827,7 +827,7 @@ EXPORT_SYMBOL(snd_info_create_module_entry); * * Creates a new info entry and assigns it to the given card. * - * Returns the pointer of the new instance, or NULL on failure. + * Return: The pointer of the new instance, or %NULL on failure. */ struct snd_info_entry *snd_info_create_card_entry(struct snd_card *card, const char *name, @@ -893,7 +893,7 @@ static int snd_info_dev_register_entry(struct snd_device *device) * For releasing this entry, use snd_device_free() instead of * snd_info_free_entry(). * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_card_proc_new(struct snd_card *card, const char *name, struct snd_info_entry **entryp) @@ -949,7 +949,7 @@ EXPORT_SYMBOL(snd_info_free_entry); * * Registers the proc info entry. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_info_register(struct snd_info_entry * entry) { diff --git a/sound/core/init.c b/sound/core/init.c index 7b012d15c2c..6ef06400dfc 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -144,7 +144,7 @@ static inline int init_info_for_card(struct snd_card *card) * space for the driver to use freely. The allocated struct is stored * in the given card_ret pointer. * - * Returns zero if successful or a negative error code. + * Return: Zero if successful or a negative error code. */ int snd_card_create(int idx, const char *xid, struct module *module, int extra_size, @@ -337,7 +337,7 @@ static const struct file_operations snd_shutdown_f_ops = * * Disconnects all APIs from the file-operations (user space). * - * Returns zero, otherwise a negative error code. + * Return: Zero, otherwise a negative error code. * * Note: The current implementation replaces all active file->f_op with special * dummy file operations (they do nothing except release). @@ -415,7 +415,7 @@ EXPORT_SYMBOL(snd_card_disconnect); * devices automatically. That is, you don't have to release the devices * by yourself. * - * Returns zero. Frees all associated devices and frees the control + * Return: Zero. Frees all associated devices and frees the control * interface associated to given soundcard. */ static int snd_card_do_free(struct snd_card *card) @@ -677,7 +677,7 @@ static struct device_attribute card_number_attrs = * external accesses. Thus, you should call this function at the end * of the initialization of the card. * - * Returns zero otherwise a negative error code if the registration failed. + * Return: Zero otherwise a negative error code if the registration failed. */ int snd_card_register(struct snd_card *card) { @@ -849,7 +849,7 @@ int __exit snd_card_info_done(void) * This function adds the component id string to the supported list. * The component can be referred from the alsa-lib. * - * Returns zero otherwise a negative error code. + * Return: Zero otherwise a negative error code. */ int snd_component_add(struct snd_card *card, const char *component) @@ -883,7 +883,7 @@ EXPORT_SYMBOL(snd_component_add); * This linked-list is used to keep tracking the connection state, * and to avoid the release of busy resources by hotplug. * - * Returns zero or a negative error code. + * Return: zero or a negative error code. */ int snd_card_file_add(struct snd_card *card, struct file *file) { @@ -920,7 +920,7 @@ EXPORT_SYMBOL(snd_card_file_add); * called beforehand, it processes the pending release of * resources. * - * Returns zero or a negative error code. + * Return: Zero or a negative error code. */ int snd_card_file_remove(struct snd_card *card, struct file *file) { @@ -959,6 +959,8 @@ EXPORT_SYMBOL(snd_card_file_remove); * * Waits until the power-state is changed. * + * Return: Zero if successful, or a negative error code. + * * Note: the power lock must be active before call. */ int snd_power_wait(struct snd_card *card, unsigned int power_state) diff --git a/sound/core/isadma.c b/sound/core/isadma.c index c0f1208bb7d..e2b386156a4 100644 --- a/sound/core/isadma.c +++ b/sound/core/isadma.c @@ -81,7 +81,7 @@ EXPORT_SYMBOL(snd_dma_disable); * @dma: the dma number * @size: the dma transfer size * - * Returns the current pointer in DMA tranfer buffer in bytes + * Return: The current pointer in DMA transfer buffer in bytes. */ unsigned int snd_dma_pointer(unsigned long dma, unsigned int size) { diff --git a/sound/core/jack.c b/sound/core/jack.c index a06b1651fcb..b35fe7345c2 100644 --- a/sound/core/jack.c +++ b/sound/core/jack.c @@ -98,8 +98,8 @@ static int snd_jack_dev_register(struct snd_device *device) * * Creates a new jack object. * - * Returns zero if successful, or a negative error code on failure. - * On success jjack will be initialised. + * Return: Zero if successful, or a negative error code on failure. + * On success @jjack will be initialised. */ int snd_jack_new(struct snd_card *card, const char *id, int type, struct snd_jack **jjack) @@ -189,6 +189,8 @@ EXPORT_SYMBOL(snd_jack_set_parent); * using this abstraction. * * This function may only be called prior to registration of the jack. + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type, int keytype) diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c index 69156923843..bdf826f4fe0 100644 --- a/sound/core/memalloc.c +++ b/sound/core/memalloc.c @@ -81,7 +81,7 @@ static inline void dec_snd_pages(int order) * * Allocates the physically contiguous pages with the given size. * - * Returns the pointer of the buffer, or NULL if no enoguh memory. + * Return: The pointer of the buffer, or %NULL if no enough memory. */ void *snd_malloc_pages(size_t size, gfp_t gfp_flags) { @@ -175,9 +175,9 @@ static void snd_free_dev_pages(struct device *dev, size_t size, void *ptr, * * Calls the memory-allocator function for the corresponding * buffer type. - * - * Returns zero if the buffer with the given size is allocated successfully, - * other a negative value at error. + * + * Return: Zero if the buffer with the given size is allocated successfully, + * otherwise a negative value on error. */ int snd_dma_alloc_pages(int type, struct device *device, size_t size, struct snd_dma_buffer *dmab) @@ -229,9 +229,9 @@ int snd_dma_alloc_pages(int type, struct device *device, size_t size, * buffer type. When no space is left, this function reduces the size and * tries to allocate again. The size actually allocated is stored in * res_size argument. - * - * Returns zero if the buffer with the given size is allocated successfully, - * other a negative value at error. + * + * Return: Zero if the buffer with the given size is allocated successfully, + * otherwise a negative value on error. */ int snd_dma_alloc_pages_fallback(int type, struct device *device, size_t size, struct snd_dma_buffer *dmab) @@ -292,7 +292,7 @@ void snd_dma_free_pages(struct snd_dma_buffer *dmab) * Looks for the reserved-buffer list and re-uses if the same buffer * is found in the list. When the buffer is found, it's removed from the free list. * - * Returns the size of buffer if the buffer is found, or zero if not found. + * Return: The size of buffer if the buffer is found, or zero if not found. */ size_t snd_dma_get_reserved_buf(struct snd_dma_buffer *dmab, unsigned int id) { @@ -326,8 +326,8 @@ size_t snd_dma_get_reserved_buf(struct snd_dma_buffer *dmab, unsigned int id) * @id: the buffer id * * Reserves the given buffer as a reserved buffer. - * - * Returns zero if successful, or a negative code at error. + * + * Return: Zero if successful, or a negative code on error. */ int snd_dma_reserve_buf(struct snd_dma_buffer *dmab, unsigned int id) { diff --git a/sound/core/memory.c b/sound/core/memory.c index 66a278d0b04..36c0f1a2e18 100644 --- a/sound/core/memory.c +++ b/sound/core/memory.c @@ -33,7 +33,7 @@ * * Copies the data from mmio-space to user-space. * - * Returns zero if successful, or non-zero on failure. + * Return: Zero if successful, or non-zero on failure. */ int copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size_t count) { @@ -66,7 +66,7 @@ EXPORT_SYMBOL(copy_to_user_fromio); * * Copies the data from user-space to mmio-space. * - * Returns zero if successful, or non-zero on failure. + * Return: Zero if successful, or non-zero on failure. */ int copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size_t count) { diff --git a/sound/core/pcm.c b/sound/core/pcm.c index 61798f85d03..578327e2bc2 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -637,7 +637,7 @@ static inline int snd_pcm_substream_proc_done(struct snd_pcm_substream *substrea * calling this, i.e. zero must be given to the argument of * snd_pcm_new(). * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count) { @@ -759,7 +759,7 @@ static int _snd_pcm_new(struct snd_card *card, const char *id, int device, * The pcm operators have to be set afterwards to the new instance * via snd_pcm_set_ops(). * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_new(struct snd_card *card, const char *id, int device, int playback_count, int capture_count, struct snd_pcm **rpcm) @@ -787,7 +787,7 @@ EXPORT_SYMBOL(snd_pcm_new); * The pcm operators have to be set afterwards to the new instance * via snd_pcm_set_ops(). * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_new_internal(struct snd_card *card, const char *id, int device, int playback_count, int capture_count, diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index c4840ff75d0..41b3dfe6869 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -666,7 +666,8 @@ static inline unsigned int muldiv32(unsigned int a, unsigned int b, * The interval is changed to the range satisfying both intervals. * The interval status (min, max, integer, etc.) are evaluated. * - * Returns non-zero if the value is changed, zero if not changed. + * Return: Positive if the value is changed, zero if it's not changed, or a + * negative error code. */ int snd_interval_refine(struct snd_interval *i, const struct snd_interval *v) { @@ -865,7 +866,8 @@ void snd_interval_mulkdiv(const struct snd_interval *a, unsigned int k, * @nump: pointer to store the resultant numerator * @denp: pointer to store the resultant denominator * - * Returns non-zero if the value is changed, zero if not changed. + * Return: Positive if the value is changed, zero if it's not changed, or a + * negative error code. */ int snd_interval_ratnum(struct snd_interval *i, unsigned int rats_count, struct snd_ratnum *rats, @@ -983,7 +985,8 @@ EXPORT_SYMBOL(snd_interval_ratnum); * @nump: pointer to store the resultant numerator * @denp: pointer to store the resultant denominator * - * Returns non-zero if the value is changed, zero if not changed. + * Return: Positive if the value is changed, zero if it's not changed, or a + * negative error code. */ static int snd_interval_ratden(struct snd_interval *i, unsigned int rats_count, struct snd_ratden *rats, @@ -1082,7 +1085,8 @@ static int snd_interval_ratden(struct snd_interval *i, * When mask is non-zero, only the elements corresponding to bit 1 are * evaluated. * - * Returns non-zero if the value is changed, zero if not changed. + * Return: Positive if the value is changed, zero if it's not changed, or a + * negative error code. */ int snd_interval_list(struct snd_interval *i, unsigned int count, const unsigned int *list, unsigned int mask) @@ -1142,7 +1146,7 @@ static int snd_interval_step(struct snd_interval *i, unsigned int min, unsigned * @private: the private data pointer passed to function * @dep: the dependent variables * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_rule_add(struct snd_pcm_runtime *runtime, unsigned int cond, int var, @@ -1200,6 +1204,8 @@ EXPORT_SYMBOL(snd_pcm_hw_rule_add); * @mask: the bitmap mask * * Apply the constraint of the given bitmap mask to a 32-bit mask parameter. + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_constraint_mask(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var, u_int32_t mask) @@ -1220,6 +1226,8 @@ int snd_pcm_hw_constraint_mask(struct snd_pcm_runtime *runtime, snd_pcm_hw_param * @mask: the 64bit bitmap mask * * Apply the constraint of the given bitmap mask to a 64-bit mask parameter. + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_constraint_mask64(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var, u_int64_t mask) @@ -1240,6 +1248,9 @@ int snd_pcm_hw_constraint_mask64(struct snd_pcm_runtime *runtime, snd_pcm_hw_par * @var: hw_params variable to apply the integer constraint * * Apply the constraint of integer to an interval parameter. + * + * Return: Positive if the value is changed, zero if it's not changed, or a + * negative error code. */ int snd_pcm_hw_constraint_integer(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var) { @@ -1257,6 +1268,9 @@ EXPORT_SYMBOL(snd_pcm_hw_constraint_integer); * @max: the maximal value * * Apply the min/max range constraint to an interval parameter. + * + * Return: Positive if the value is changed, zero if it's not changed, or a + * negative error code. */ int snd_pcm_hw_constraint_minmax(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var, unsigned int min, unsigned int max) @@ -1288,6 +1302,8 @@ static int snd_pcm_hw_rule_list(struct snd_pcm_hw_params *params, * @l: list * * Apply the list of constraints to an interval parameter. + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_constraint_list(struct snd_pcm_runtime *runtime, unsigned int cond, @@ -1322,6 +1338,8 @@ static int snd_pcm_hw_rule_ratnums(struct snd_pcm_hw_params *params, * @cond: condition bits * @var: hw_params variable to apply the ratnums constraint * @r: struct snd_ratnums constriants + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_constraint_ratnums(struct snd_pcm_runtime *runtime, unsigned int cond, @@ -1355,6 +1373,8 @@ static int snd_pcm_hw_rule_ratdens(struct snd_pcm_hw_params *params, * @cond: condition bits * @var: hw_params variable to apply the ratdens constraint * @r: struct snd_ratdens constriants + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_constraint_ratdens(struct snd_pcm_runtime *runtime, unsigned int cond, @@ -1386,6 +1406,8 @@ static int snd_pcm_hw_rule_msbits(struct snd_pcm_hw_params *params, * @cond: condition bits * @width: sample bits width * @msbits: msbits width + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_constraint_msbits(struct snd_pcm_runtime *runtime, unsigned int cond, @@ -1414,6 +1436,8 @@ static int snd_pcm_hw_rule_step(struct snd_pcm_hw_params *params, * @cond: condition bits * @var: hw_params variable to apply the step constraint * @step: step size + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_constraint_step(struct snd_pcm_runtime *runtime, unsigned int cond, @@ -1444,6 +1468,8 @@ static int snd_pcm_hw_rule_pow2(struct snd_pcm_hw_params *params, struct snd_pcm * @runtime: PCM runtime instance * @cond: condition bits * @var: hw_params variable to apply the power-of-2 constraint + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_constraint_pow2(struct snd_pcm_runtime *runtime, unsigned int cond, @@ -1470,6 +1496,8 @@ static int snd_pcm_hw_rule_noresample_func(struct snd_pcm_hw_params *params, * snd_pcm_hw_rule_noresample - add a rule to allow disabling hw resampling * @runtime: PCM runtime instance * @base_rate: the rate at which the hardware does not resample + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_rule_noresample(struct snd_pcm_runtime *runtime, unsigned int base_rate) @@ -1519,8 +1547,8 @@ EXPORT_SYMBOL(_snd_pcm_hw_params_any); * @var: parameter to retrieve * @dir: pointer to the direction (-1,0,1) or %NULL * - * Return the value for field @var if it's fixed in configuration space - * defined by @params. Return -%EINVAL otherwise. + * Return: The value for field @var if it's fixed in configuration space + * defined by @params. -%EINVAL otherwise. */ int snd_pcm_hw_param_value(const struct snd_pcm_hw_params *params, snd_pcm_hw_param_t var, int *dir) @@ -1591,7 +1619,8 @@ static int _snd_pcm_hw_param_first(struct snd_pcm_hw_params *params, * * Inside configuration space defined by @params remove from @var all * values > minimum. Reduce configuration space accordingly. - * Return the minimum. + * + * Return: The minimum, or a negative error code on failure. */ int snd_pcm_hw_param_first(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params, @@ -1637,7 +1666,8 @@ static int _snd_pcm_hw_param_last(struct snd_pcm_hw_params *params, * * Inside configuration space defined by @params remove from @var all * values < maximum. Reduce configuration space accordingly. - * Return the maximum. + * + * Return: The maximum, or a negative error code on failure. */ int snd_pcm_hw_param_last(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params, @@ -1665,6 +1695,8 @@ EXPORT_SYMBOL(snd_pcm_hw_param_last); * The configuration chosen is that obtained fixing in this order: * first access, first format, first subformat, min channels, * min rate, min period time, max buffer size, min tick time + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_hw_params_choose(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params) @@ -1771,7 +1803,7 @@ static int snd_pcm_lib_ioctl_fifo_size(struct snd_pcm_substream *substream, * Processes the generic ioctl commands for PCM. * Can be passed as the ioctl callback for PCM ops. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_lib_ioctl(struct snd_pcm_substream *substream, unsigned int cmd, void *arg) @@ -2510,7 +2542,7 @@ static void pcm_chmap_ctl_private_free(struct snd_kcontrol *kcontrol) * @info_ret: store struct snd_pcm_chmap instance if non-NULL * * Create channel-mapping control elements assigned to the given PCM stream(s). - * Returns zero if succeed, or a negative error value. + * Return: Zero if successful, or a negative error value. */ int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream, const struct snd_pcm_chmap_elem *chmap, diff --git a/sound/core/pcm_memory.c b/sound/core/pcm_memory.c index 69e01c4fc32..0af622c34e1 100644 --- a/sound/core/pcm_memory.c +++ b/sound/core/pcm_memory.c @@ -95,7 +95,7 @@ static void snd_pcm_lib_preallocate_dma_free(struct snd_pcm_substream *substream * * Releases the pre-allocated buffer of the given substream. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream) { @@ -115,7 +115,7 @@ int snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream) * * Releases all the pre-allocated buffers on the given pcm. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm) { @@ -265,7 +265,7 @@ static int snd_pcm_lib_preallocate_pages1(struct snd_pcm_substream *substream, * destruction time. The dma_buf_id must be unique for all systems * (in the same DMA buffer type) e.g. using snd_dma_pci_buf_id(). * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_lib_preallocate_pages(struct snd_pcm_substream *substream, int type, struct device *data, @@ -289,7 +289,7 @@ EXPORT_SYMBOL(snd_pcm_lib_preallocate_pages); * Do pre-allocation to all substreams of the given pcm for the * specified DMA type. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm *pcm, int type, void *data, @@ -313,8 +313,9 @@ EXPORT_SYMBOL(snd_pcm_lib_preallocate_pages_for_all); * @substream: the pcm substream instance * @offset: the buffer offset * - * Returns the page struct at the given buffer offset. * Used as the page callback of PCM ops. + * + * Return: The page struct at the given buffer offset. %NULL on failure. */ struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream, unsigned long offset) { @@ -337,7 +338,7 @@ EXPORT_SYMBOL(snd_pcm_sgbuf_ops_page); * Allocates the DMA buffer on the BUS type given earlier to * snd_pcm_lib_preallocate_xxx_pages(). * - * Returns 1 if the buffer is changed, 0 if not changed, or a negative + * Return: 1 if the buffer is changed, 0 if not changed, or a negative * code on failure. */ int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size) @@ -390,7 +391,7 @@ EXPORT_SYMBOL(snd_pcm_lib_malloc_pages); * * Releases the DMA buffer allocated via snd_pcm_lib_malloc_pages(). * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_lib_free_pages(struct snd_pcm_substream *substream) { @@ -437,6 +438,8 @@ EXPORT_SYMBOL(_snd_pcm_lib_alloc_vmalloc_buffer); * snd_pcm_lib_free_vmalloc_buffer - free vmalloc buffer * @substream: the substream with a buffer allocated by * snd_pcm_lib_alloc_vmalloc_buffer() + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_lib_free_vmalloc_buffer(struct snd_pcm_substream *substream) { @@ -458,6 +461,8 @@ EXPORT_SYMBOL(snd_pcm_lib_free_vmalloc_buffer); * @offset: offset in the buffer * * This function is to be used as the page callback in the PCM ops. + * + * Return: The page struct, or %NULL on failure. */ struct page *snd_pcm_lib_get_vmalloc_page(struct snd_pcm_substream *substream, unsigned long offset) diff --git a/sound/core/pcm_misc.c b/sound/core/pcm_misc.c index d4fc1bfbe45..b875b19f2d5 100644 --- a/sound/core/pcm_misc.c +++ b/sound/core/pcm_misc.c @@ -213,7 +213,7 @@ static struct pcm_format_data pcm_formats[(INT)SNDRV_PCM_FORMAT_LAST+1] = { * snd_pcm_format_signed - Check the PCM format is signed linear * @format: the format to check * - * Returns 1 if the given PCM format is signed linear, 0 if unsigned + * Return: 1 if the given PCM format is signed linear, 0 if unsigned * linear, and a negative error code for non-linear formats. */ int snd_pcm_format_signed(snd_pcm_format_t format) @@ -232,7 +232,7 @@ EXPORT_SYMBOL(snd_pcm_format_signed); * snd_pcm_format_unsigned - Check the PCM format is unsigned linear * @format: the format to check * - * Returns 1 if the given PCM format is unsigned linear, 0 if signed + * Return: 1 if the given PCM format is unsigned linear, 0 if signed * linear, and a negative error code for non-linear formats. */ int snd_pcm_format_unsigned(snd_pcm_format_t format) @@ -251,7 +251,7 @@ EXPORT_SYMBOL(snd_pcm_format_unsigned); * snd_pcm_format_linear - Check the PCM format is linear * @format: the format to check * - * Returns 1 if the given PCM format is linear, 0 if not. + * Return: 1 if the given PCM format is linear, 0 if not. */ int snd_pcm_format_linear(snd_pcm_format_t format) { @@ -264,7 +264,7 @@ EXPORT_SYMBOL(snd_pcm_format_linear); * snd_pcm_format_little_endian - Check the PCM format is little-endian * @format: the format to check * - * Returns 1 if the given PCM format is little-endian, 0 if + * Return: 1 if the given PCM format is little-endian, 0 if * big-endian, or a negative error code if endian not specified. */ int snd_pcm_format_little_endian(snd_pcm_format_t format) @@ -283,7 +283,7 @@ EXPORT_SYMBOL(snd_pcm_format_little_endian); * snd_pcm_format_big_endian - Check the PCM format is big-endian * @format: the format to check * - * Returns 1 if the given PCM format is big-endian, 0 if + * Return: 1 if the given PCM format is big-endian, 0 if * little-endian, or a negative error code if endian not specified. */ int snd_pcm_format_big_endian(snd_pcm_format_t format) @@ -302,7 +302,7 @@ EXPORT_SYMBOL(snd_pcm_format_big_endian); * snd_pcm_format_width - return the bit-width of the format * @format: the format to check * - * Returns the bit-width of the format, or a negative error code + * Return: The bit-width of the format, or a negative error code * if unknown format. */ int snd_pcm_format_width(snd_pcm_format_t format) @@ -321,7 +321,7 @@ EXPORT_SYMBOL(snd_pcm_format_width); * snd_pcm_format_physical_width - return the physical bit-width of the format * @format: the format to check * - * Returns the physical bit-width of the format, or a negative error code + * Return: The physical bit-width of the format, or a negative error code * if unknown format. */ int snd_pcm_format_physical_width(snd_pcm_format_t format) @@ -341,7 +341,7 @@ EXPORT_SYMBOL(snd_pcm_format_physical_width); * @format: the format to check * @samples: sampling rate * - * Returns the byte size of the given samples for the format, or a + * Return: The byte size of the given samples for the format, or a * negative error code if unknown format. */ ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples) @@ -358,7 +358,7 @@ EXPORT_SYMBOL(snd_pcm_format_size); * snd_pcm_format_silence_64 - return the silent data in 8 bytes array * @format: the format to check * - * Returns the format pattern to fill or NULL if error. + * Return: The format pattern to fill or %NULL if error. */ const unsigned char *snd_pcm_format_silence_64(snd_pcm_format_t format) { @@ -379,7 +379,7 @@ EXPORT_SYMBOL(snd_pcm_format_silence_64); * * Sets the silence data on the buffer for the given samples. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_pcm_format_set_silence(snd_pcm_format_t format, void *data, unsigned int samples) { @@ -449,7 +449,7 @@ EXPORT_SYMBOL(snd_pcm_format_set_silence); * Determines the rate_min and rate_max fields from the rates bits of * the given runtime->hw. * - * Returns zero if successful. + * Return: Zero if successful. */ int snd_pcm_limit_hw_rates(struct snd_pcm_runtime *runtime) { @@ -475,7 +475,7 @@ EXPORT_SYMBOL(snd_pcm_limit_hw_rates); * snd_pcm_rate_to_rate_bit - converts sample rate to SNDRV_PCM_RATE_xxx bit * @rate: the sample rate to convert * - * Returns the SNDRV_PCM_RATE_xxx flag that corresponds to the given rate, or + * Return: The SNDRV_PCM_RATE_xxx flag that corresponds to the given rate, or * SNDRV_PCM_RATE_KNOT for an unknown rate. */ unsigned int snd_pcm_rate_to_rate_bit(unsigned int rate) @@ -493,8 +493,8 @@ EXPORT_SYMBOL(snd_pcm_rate_to_rate_bit); * snd_pcm_rate_bit_to_rate - converts SNDRV_PCM_RATE_xxx bit to sample rate * @rate_bit: the rate bit to convert * - * Returns the sample rate that corresponds to the given SNDRV_PCM_RATE_xxx flag - * or 0 for an unknown rate bit + * Return: The sample rate that corresponds to the given SNDRV_PCM_RATE_xxx flag + * or 0 for an unknown rate bit. */ unsigned int snd_pcm_rate_bit_to_rate(unsigned int rate_bit) { diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 71ae86ca64a..5bce9152b64 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -898,6 +898,8 @@ static struct action_ops snd_pcm_action_start = { /** * snd_pcm_start - start all linked streams * @substream: the PCM substream instance + * + * Return: Zero if successful, or a negative error code. */ int snd_pcm_start(struct snd_pcm_substream *substream) { @@ -951,6 +953,8 @@ static struct action_ops snd_pcm_action_stop = { * @state: PCM state after stopping the stream * * The state of each stream is then changed to the given state unconditionally. + * + * Return: Zero if succesful, or a negative error code. */ int snd_pcm_stop(struct snd_pcm_substream *substream, snd_pcm_state_t state) { @@ -965,6 +969,8 @@ EXPORT_SYMBOL(snd_pcm_stop); * * After stopping, the state is changed to SETUP. * Unlike snd_pcm_stop(), this affects only the given stream. + * + * Return: Zero if succesful, or a negative error code. */ int snd_pcm_drain_done(struct snd_pcm_substream *substream) { @@ -1098,6 +1104,9 @@ static struct action_ops snd_pcm_action_suspend = { * @substream: the PCM substream * * After this call, all streams are changed to SUSPENDED state. + * + * Return: Zero if successful (or @substream is %NULL), or a negative error + * code. */ int snd_pcm_suspend(struct snd_pcm_substream *substream) { @@ -1120,6 +1129,8 @@ EXPORT_SYMBOL(snd_pcm_suspend); * @pcm: the PCM instance * * After this call, all streams are changed to SUSPENDED state. + * + * Return: Zero if successful (or @pcm is %NULL), or a negative error code. */ int snd_pcm_suspend_all(struct snd_pcm *pcm) { @@ -1343,6 +1354,8 @@ static struct action_ops snd_pcm_action_prepare = { * snd_pcm_prepare - prepare the PCM substream to be triggerable * @substream: the PCM substream instance * @file: file to refer f_flags + * + * Return: Zero if successful, or a negative error code. */ static int snd_pcm_prepare(struct snd_pcm_substream *substream, struct file *file) diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c index 1bb95aeea08..7b596b5751d 100644 --- a/sound/core/rawmidi.c +++ b/sound/core/rawmidi.c @@ -863,7 +863,7 @@ static int snd_rawmidi_control_ioctl(struct snd_card *card, * * Reads the data from the internal buffer. * - * Returns the size of read data, or a negative error code on failure. + * Return: The size of read data, or a negative error code on failure. */ int snd_rawmidi_receive(struct snd_rawmidi_substream *substream, const unsigned char *buffer, int count) @@ -1024,8 +1024,8 @@ static ssize_t snd_rawmidi_read(struct file *file, char __user *buf, size_t coun /** * snd_rawmidi_transmit_empty - check whether the output buffer is empty * @substream: the rawmidi substream - * - * Returns 1 if the internal output buffer is empty, 0 if not. + * + * Return: 1 if the internal output buffer is empty, 0 if not. */ int snd_rawmidi_transmit_empty(struct snd_rawmidi_substream *substream) { @@ -1055,7 +1055,7 @@ int snd_rawmidi_transmit_empty(struct snd_rawmidi_substream *substream) * and call snd_rawmidi_transmit_ack() after the transmission is * finished. * - * Returns the size of copied data, or a negative error code on failure. + * Return: The size of copied data, or a negative error code on failure. */ int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream, unsigned char *buffer, int count) @@ -1107,7 +1107,7 @@ int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream, * the given size and updates the condition. * Call after the transmission is finished. * - * Returns the advanced size if successful, or a negative error code on failure. + * Return: The advanced size if successful, or a negative error code on failure. */ int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count) { @@ -1140,7 +1140,7 @@ int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count) * * Copies data from the buffer to the device and advances the pointer. * - * Returns the copied size if successful, or a negative error code on failure. + * Return: The copied size if successful, or a negative error code on failure. */ int snd_rawmidi_transmit(struct snd_rawmidi_substream *substream, unsigned char *buffer, int count) @@ -1438,7 +1438,7 @@ static int snd_rawmidi_alloc_substreams(struct snd_rawmidi *rmidi, * Creates a new rawmidi instance. * Use snd_rawmidi_set_ops() to set the operators to the new instance. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_rawmidi_new(struct snd_card *card, char *id, int device, int output_count, int input_count, diff --git a/sound/core/sound.c b/sound/core/sound.c index 70ccdab7415..f002bd911da 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -102,6 +102,9 @@ static void snd_request_other(int minor) * This function increments the reference counter of the card instance * if an associated instance with the given minor number and type is found. * The caller must call snd_card_unref() appropriately later. + * + * Return: The user data pointer if the specified device is found. %NULL + * otherwise. */ void *snd_lookup_minor_data(unsigned int minor, int type) { @@ -261,7 +264,7 @@ static int snd_kernel_minor(int type, struct snd_card *card, int dev) * Registers an ALSA device file for the given card. * The operators have to be set in reg parameter. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_register_device_for_dev(int type, struct snd_card *card, int dev, const struct file_operations *f_ops, @@ -339,7 +342,7 @@ static int find_snd_minor(int type, struct snd_card *card, int dev) * Unregisters the device file already registered via * snd_register_device(). * - * Returns zero if sucecessful, or a negative error code on failure + * Return: Zero if successful, or a negative error code on failure. */ int snd_unregister_device(int type, struct snd_card *card, int dev) { diff --git a/sound/core/vmaster.c b/sound/core/vmaster.c index 857586135d1..55c9d8c8d3c 100644 --- a/sound/core/vmaster.c +++ b/sound/core/vmaster.c @@ -362,8 +362,7 @@ static void master_free(struct snd_kcontrol *kcontrol) * @name: name string of the control element to create * @tlv: optional TLV int array for dB information * - * Creates a virtual matster control with the given name string. - * Returns the created control element, or NULL for errors (ENOMEM). + * Creates a virtual master control with the given name string. * * After creating a vmaster element, you can add the slave controls * via snd_ctl_add_slave() or snd_ctl_add_slave_uncached(). @@ -372,6 +371,8 @@ static void master_free(struct snd_kcontrol *kcontrol) * for dB scale of the master control. It should be a single element * with #SNDRV_CTL_TLVT_DB_SCALE, #SNDRV_CTL_TLV_DB_MINMAX or * #SNDRV_CTL_TLVT_DB_MINMAX_MUTE type, and should be the max 0dB. + * + * Return: The created control element, or %NULL for errors (ENOMEM). */ struct snd_kcontrol *snd_ctl_make_virtual_master(char *name, const unsigned int *tlv) @@ -423,6 +424,8 @@ EXPORT_SYMBOL(snd_ctl_make_virtual_master); * * Adds the given hook to the vmaster control element so that it's called * at each time when the value is changed. + * + * Return: Zero. */ int snd_ctl_add_vmaster_hook(struct snd_kcontrol *kcontrol, void (*hook)(void *private_data, int), diff --git a/sound/drivers/mpu401/mpu401_uart.c b/sound/drivers/mpu401/mpu401_uart.c index 4608c2ca43f..e3a90d043f0 100644 --- a/sound/drivers/mpu401/mpu401_uart.c +++ b/sound/drivers/mpu401/mpu401_uart.c @@ -129,6 +129,8 @@ static void _snd_mpu401_uart_interrupt(struct snd_mpu401 *mpu) * @dev_id: mpu401 instance * * Processes the interrupt for MPU401-UART i/o. + * + * Return: %IRQ_HANDLED if the interrupt was handled. %IRQ_NONE otherwise. */ irqreturn_t snd_mpu401_uart_interrupt(int irq, void *dev_id) { @@ -148,6 +150,8 @@ EXPORT_SYMBOL(snd_mpu401_uart_interrupt); * @dev_id: mpu401 instance * * Processes the interrupt for MPU401-UART output. + * + * Return: %IRQ_HANDLED if the interrupt was handled. %IRQ_NONE otherwise. */ irqreturn_t snd_mpu401_uart_interrupt_tx(int irq, void *dev_id) { @@ -519,7 +523,7 @@ static void snd_mpu401_uart_free(struct snd_rawmidi *rmidi) * not the mpu401 instance itself. To access to the mpu401 instance, * cast from rawmidi->private_data (with struct snd_mpu401 magic-cast). * - * Returns zero if successful, or a negative error code. + * Return: Zero if successful, or a negative error code. */ int snd_mpu401_uart_new(struct snd_card *card, int device, unsigned short hardware, diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c index 8b0f9968830..d37c683cfd7 100644 --- a/sound/pci/ac97/ac97_codec.c +++ b/sound/pci/ac97/ac97_codec.c @@ -299,7 +299,7 @@ EXPORT_SYMBOL(snd_ac97_write); * Reads a value from the given register. This will invoke the read * callback directly after the register check. * - * Returns the read value. + * Return: The read value. */ unsigned short snd_ac97_read(struct snd_ac97 *ac97, unsigned short reg) { @@ -352,7 +352,7 @@ EXPORT_SYMBOL(snd_ac97_write_cache); * Compares the value with the register cache and updates the value * only when the value is changed. * - * Returns 1 if the value is changed, 0 if no change, or a negative + * Return: 1 if the value is changed, 0 if no change, or a negative * code on failure. */ int snd_ac97_update(struct snd_ac97 *ac97, unsigned short reg, unsigned short value) @@ -384,7 +384,7 @@ EXPORT_SYMBOL(snd_ac97_update); * Updates the masked-bits on the given register only when the value * is changed. * - * Returns 1 if the bits are changed, 0 if no change, or a negative + * Return: 1 if the bits are changed, 0 if no change, or a negative * code on failure. */ int snd_ac97_update_bits(struct snd_ac97 *ac97, unsigned short reg, unsigned short mask, unsigned short value) @@ -1836,7 +1836,7 @@ void snd_ac97_get_name(struct snd_ac97 *ac97, unsigned int id, char *name, int m * snd_ac97_get_short_name - retrieve codec name * @ac97: the codec instance * - * Returns the short identifying name of the codec. + * Return: The short identifying name of the codec. */ const char *snd_ac97_get_short_name(struct snd_ac97 *ac97) { @@ -1910,7 +1910,7 @@ static int ac97_reset_wait(struct snd_ac97 *ac97, int timeout, int with_modem) * The AC97 bus instance is registered as a low-level device, so you don't * have to release it manually. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_ac97_bus(struct snd_card *card, int num, struct snd_ac97_bus_ops *ops, void *private_data, struct snd_ac97_bus **rbus) @@ -2006,7 +2006,7 @@ static void do_update_power(struct work_struct *work) * The ac97 instance is registered as a low-level device, so you don't * have to release it manually. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template, struct snd_ac97 **rac97) { @@ -2373,6 +2373,8 @@ static struct ac97_power_reg power_regs[PWIDX_SIZE] = { * @powerup: non-zero when power up the part * * Update the AC97 powerdown register bits of the given part. + * + * Return: Zero. */ int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup) { @@ -2885,7 +2887,7 @@ static int apply_quirk_str(struct snd_ac97 *ac97, const char *typestr) * headphone (true line-out) control as "Master". * The quirk-list must be terminated with a zero-filled entry. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_ac97_tune_hardware(struct snd_ac97 *ac97, struct ac97_quirk *quirk, const char *override) diff --git a/sound/pci/ac97/ac97_pcm.c b/sound/pci/ac97/ac97_pcm.c index f1488fc176d..eab0fc9ff2e 100644 --- a/sound/pci/ac97/ac97_pcm.c +++ b/sound/pci/ac97/ac97_pcm.c @@ -253,7 +253,7 @@ static int set_spdif_rate(struct snd_ac97 *ac97, unsigned short rate) * AC97_SPDIF is accepted as a pseudo register to modify the SPDIF * status bits. * - * Returns zero if successful, or a negative error code on failure. + * Return: Zero if successful, or a negative error code on failure. */ int snd_ac97_set_rate(struct snd_ac97 *ac97, int reg, unsigned int rate) { @@ -440,6 +440,8 @@ static unsigned int get_rates(struct ac97_pcm *pcm, unsigned int cidx, unsigned * It assigns available AC97 slots for given PCMs. If none or only * some slots are available, pcm->xxx.slots and pcm->xxx.rslots[] members * are reduced and might be zero. + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_ac97_pcm_assign(struct snd_ac97_bus *bus, unsigned short pcms_count, @@ -562,6 +564,8 @@ EXPORT_SYMBOL(snd_ac97_pcm_assign); * @slots: a subset of allocated slots (snd_ac97_pcm_assign) for this pcm * * It locks the specified slots and sets the given rate to AC97 registers. + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_ac97_pcm_open(struct ac97_pcm *pcm, unsigned int rate, enum ac97_pcm_cfg cfg, unsigned short slots) @@ -644,6 +648,8 @@ EXPORT_SYMBOL(snd_ac97_pcm_open); * @pcm: the ac97 pcm instance * * It frees the locked AC97 slots. + * + * Return: Zero. */ int snd_ac97_pcm_close(struct ac97_pcm *pcm) { @@ -718,6 +724,8 @@ static int double_rate_hw_constraint_channels(struct snd_pcm_hw_params *params, * * Installs the hardware constraint rules to prevent using double rates and * more than two channels at the same time. + * + * Return: Zero if successful, or a negative error code on failure. */ int snd_ac97_pcm_double_rate_rules(struct snd_pcm_runtime *runtime) { diff --git a/sound/sound_core.c b/sound/sound_core.c index bb23009edc8..359753fc24e 100644 --- a/sound/sound_core.c +++ b/sound/sound_core.c @@ -352,7 +352,9 @@ static struct sound_unit *chains[SOUND_STEP]; * @dev: device pointer * * Allocate a special sound device by minor number from the sound - * subsystem. The allocated number is returned on success. On failure + * subsystem. + * + * Return: The allocated number is returned on success. On failure, * a negative error code is returned. */ @@ -436,8 +438,10 @@ EXPORT_SYMBOL(register_sound_special); * @dev: Unit number to allocate * * Allocate a mixer device. Unit is the number of the mixer requested. - * Pass -1 to request the next free mixer unit. On success the allocated - * number is returned, on failure a negative error code is returned. + * Pass -1 to request the next free mixer unit. + * + * Return: On success, the allocated number is returned. On failure, + * a negative error code is returned. */ int register_sound_mixer(const struct file_operations *fops, int dev) @@ -454,8 +458,10 @@ EXPORT_SYMBOL(register_sound_mixer); * @dev: Unit number to allocate * * Allocate a midi device. Unit is the number of the midi device requested. - * Pass -1 to request the next free midi unit. On success the allocated - * number is returned, on failure a negative error code is returned. + * Pass -1 to request the next free midi unit. + * + * Return: On success, the allocated number is returned. On failure, + * a negative error code is returned. */ int register_sound_midi(const struct file_operations *fops, int dev) @@ -477,11 +483,13 @@ EXPORT_SYMBOL(register_sound_midi); * @dev: Unit number to allocate * * Allocate a DSP device. Unit is the number of the DSP requested. - * Pass -1 to request the next free DSP unit. On success the allocated - * number is returned, on failure a negative error code is returned. + * Pass -1 to request the next free DSP unit. * * This function allocates both the audio and dsp device entries together * and will always allocate them as a matching pair - eg dsp3/audio3 + * + * Return: On success, the allocated number is returned. On failure, + * a negative error code is returned. */ int register_sound_dsp(const struct file_operations *fops, int dev) |