diff options
Diffstat (limited to 'sound/core')
-rw-r--r-- | sound/core/control.c | 2 | ||||
-rw-r--r-- | sound/core/oss/pcm_oss.c | 52 | ||||
-rw-r--r-- | sound/core/pcm.c | 4 | ||||
-rw-r--r-- | sound/core/pcm_lib.c | 8 | ||||
-rw-r--r-- | sound/core/rawmidi.c | 4 | ||||
-rw-r--r-- | sound/core/seq/seq_memory.c | 2 | ||||
-rw-r--r-- | sound/core/sgbuf.c | 2 |
7 files changed, 53 insertions, 21 deletions
diff --git a/sound/core/control.c b/sound/core/control.c index 48ef0a09a7a..0c7bcd62e5b 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -1275,7 +1275,7 @@ static ssize_t snd_ctl_read(struct file *file, char __user *buffer, schedule(); remove_wait_queue(&ctl->change_sleep, &wait); if (signal_pending(current)) - return result > 0 ? result : -ERESTARTSYS; + return -ERESTARTSYS; spin_lock_irq(&ctl->read_lock); } kev = snd_kctl_event(ctl->events.next); diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index e0821eb3d85..786a82e6889 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -810,6 +810,8 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream) struct snd_mask sformat_mask; struct snd_mask mask; + if (mutex_lock_interruptible(&runtime->oss.params_lock)) + return -EINTR; sw_params = kmalloc(sizeof(*sw_params), GFP_KERNEL); params = kmalloc(sizeof(*params), GFP_KERNEL); sparams = kmalloc(sizeof(*sparams), GFP_KERNEL); @@ -1020,6 +1022,7 @@ failure: kfree(sw_params); kfree(params); kfree(sparams); + mutex_unlock(&runtime->oss.params_lock); return err; } @@ -1307,14 +1310,17 @@ static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const cha if ((tmp = snd_pcm_oss_make_ready(substream)) < 0) return tmp; + mutex_lock(&runtime->oss.params_lock); while (bytes > 0) { if (bytes < runtime->oss.period_bytes || runtime->oss.buffer_used > 0) { tmp = bytes; if (tmp + runtime->oss.buffer_used > runtime->oss.period_bytes) tmp = runtime->oss.period_bytes - runtime->oss.buffer_used; if (tmp > 0) { - if (copy_from_user(runtime->oss.buffer + runtime->oss.buffer_used, buf, tmp)) - return xfer > 0 ? (snd_pcm_sframes_t)xfer : -EFAULT; + if (copy_from_user(runtime->oss.buffer + runtime->oss.buffer_used, buf, tmp)) { + tmp = -EFAULT; + goto err; + } } runtime->oss.buffer_used += tmp; buf += tmp; @@ -1325,22 +1331,24 @@ static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const cha tmp = snd_pcm_oss_write2(substream, runtime->oss.buffer + runtime->oss.period_ptr, runtime->oss.buffer_used - runtime->oss.period_ptr, 1); if (tmp <= 0) - return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp; + goto err; runtime->oss.bytes += tmp; runtime->oss.period_ptr += tmp; runtime->oss.period_ptr %= runtime->oss.period_bytes; if (runtime->oss.period_ptr == 0 || runtime->oss.period_ptr == runtime->oss.buffer_used) runtime->oss.buffer_used = 0; - else if ((substream->f_flags & O_NONBLOCK) != 0) - return xfer > 0 ? xfer : -EAGAIN; + else if ((substream->f_flags & O_NONBLOCK) != 0) { + tmp = -EAGAIN; + goto err; + } } } else { tmp = snd_pcm_oss_write2(substream, (const char __force *)buf, runtime->oss.period_bytes, 0); if (tmp <= 0) - return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp; + goto err; runtime->oss.bytes += tmp; buf += tmp; bytes -= tmp; @@ -1350,7 +1358,12 @@ static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const cha break; } } + mutex_unlock(&runtime->oss.params_lock); return xfer; + + err: + mutex_unlock(&runtime->oss.params_lock); + return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp; } static ssize_t snd_pcm_oss_read2(struct snd_pcm_substream *substream, char *buf, size_t bytes, int in_kernel) @@ -1397,12 +1410,13 @@ static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __use if ((tmp = snd_pcm_oss_make_ready(substream)) < 0) return tmp; + mutex_lock(&runtime->oss.params_lock); while (bytes > 0) { if (bytes < runtime->oss.period_bytes || runtime->oss.buffer_used > 0) { if (runtime->oss.buffer_used == 0) { tmp = snd_pcm_oss_read2(substream, runtime->oss.buffer, runtime->oss.period_bytes, 1); if (tmp <= 0) - return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp; + goto err; runtime->oss.bytes += tmp; runtime->oss.period_ptr = tmp; runtime->oss.buffer_used = tmp; @@ -1410,8 +1424,10 @@ static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __use tmp = bytes; if ((size_t) tmp > runtime->oss.buffer_used) tmp = runtime->oss.buffer_used; - if (copy_to_user(buf, runtime->oss.buffer + (runtime->oss.period_ptr - runtime->oss.buffer_used), tmp)) - return xfer > 0 ? (snd_pcm_sframes_t)xfer : -EFAULT; + if (copy_to_user(buf, runtime->oss.buffer + (runtime->oss.period_ptr - runtime->oss.buffer_used), tmp)) { + tmp = -EFAULT; + goto err; + } buf += tmp; bytes -= tmp; xfer += tmp; @@ -1420,14 +1436,19 @@ static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __use tmp = snd_pcm_oss_read2(substream, (char __force *)buf, runtime->oss.period_bytes, 0); if (tmp <= 0) - return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp; + goto err; runtime->oss.bytes += tmp; buf += tmp; bytes -= tmp; xfer += tmp; } } + mutex_unlock(&runtime->oss.params_lock); return xfer; + + err: + mutex_unlock(&runtime->oss.params_lock); + return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp; } static int snd_pcm_oss_reset(struct snd_pcm_oss_file *pcm_oss_file) @@ -1528,6 +1549,7 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file) return err; format = snd_pcm_oss_format_from(runtime->oss.format); width = snd_pcm_format_physical_width(format); + mutex_lock(&runtime->oss.params_lock); if (runtime->oss.buffer_used > 0) { #ifdef OSS_DEBUG printk("sync: buffer_used\n"); @@ -1537,8 +1559,10 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file) runtime->oss.buffer + runtime->oss.buffer_used, size); err = snd_pcm_oss_sync1(substream, runtime->oss.period_bytes); - if (err < 0) + if (err < 0) { + mutex_unlock(&runtime->oss.params_lock); return err; + } } else if (runtime->oss.period_ptr > 0) { #ifdef OSS_DEBUG printk("sync: period_ptr\n"); @@ -1548,8 +1572,10 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file) runtime->oss.buffer, size * 8 / width); err = snd_pcm_oss_sync1(substream, size); - if (err < 0) + if (err < 0) { + mutex_unlock(&runtime->oss.params_lock); return err; + } } /* * The ALSA's period might be a bit large than OSS one. @@ -1579,6 +1605,7 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file) snd_pcm_lib_writev(substream, buffers, size); } } + mutex_unlock(&runtime->oss.params_lock); /* * finish sync: drain the buffer */ @@ -2172,6 +2199,7 @@ static void snd_pcm_oss_init_substream(struct snd_pcm_substream *substream, runtime->oss.params = 1; runtime->oss.trigger = 1; runtime->oss.rate = 8000; + mutex_init(&runtime->oss.params_lock); switch (SNDRV_MINOR_OSS_DEVICE(minor)) { case SNDRV_MINOR_OSS_PCM_8: runtime->oss.format = AFMT_U8; diff --git a/sound/core/pcm.c b/sound/core/pcm.c index 5ac6e19ccb4..8e018988551 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -640,6 +640,10 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count) err = snd_pcm_substream_proc_init(substream); if (err < 0) { snd_printk(KERN_ERR "Error in snd_pcm_stream_proc_init\n"); + if (prev == NULL) + pstr->substream = NULL; + else + prev->next = NULL; kfree(substream); return err; } diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index 0bb142a2853..b336797be4f 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -79,19 +79,17 @@ void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_ufram runtime->silence_filled -= frames; if ((snd_pcm_sframes_t)runtime->silence_filled < 0) { runtime->silence_filled = 0; - runtime->silence_start = (ofs + frames) - runtime->buffer_size; + runtime->silence_start = new_hw_ptr; } else { - runtime->silence_start = ofs - runtime->silence_filled; + runtime->silence_start = ofs; } - if ((snd_pcm_sframes_t)runtime->silence_start < 0) - runtime->silence_start += runtime->boundary; } frames = runtime->buffer_size - runtime->silence_filled; } snd_assert(frames <= runtime->buffer_size, return); if (frames == 0) return; - ofs = (runtime->silence_start + runtime->silence_filled) % runtime->buffer_size; + ofs = runtime->silence_start % runtime->buffer_size; while (frames > 0) { transfer = ofs + frames > runtime->buffer_size ? runtime->buffer_size - ofs : frames; if (runtime->access == SNDRV_PCM_ACCESS_RW_INTERLEAVED || diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c index 269c467ca9b..0f055bfcbda 100644 --- a/sound/core/rawmidi.c +++ b/sound/core/rawmidi.c @@ -1385,7 +1385,6 @@ static int snd_rawmidi_alloc_substreams(struct snd_rawmidi *rmidi, struct snd_rawmidi_substream *substream; int idx; - INIT_LIST_HEAD(&stream->substreams); for (idx = 0; idx < count; idx++) { substream = kzalloc(sizeof(*substream), GFP_KERNEL); if (substream == NULL) { @@ -1440,6 +1439,9 @@ int snd_rawmidi_new(struct snd_card *card, char *id, int device, rmidi->device = device; mutex_init(&rmidi->open_mutex); init_waitqueue_head(&rmidi->open_wait); + INIT_LIST_HEAD(&rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams); + INIT_LIST_HEAD(&rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams); + if (id != NULL) strlcpy(rmidi->id, id, sizeof(rmidi->id)); if ((err = snd_rawmidi_alloc_substreams(rmidi, diff --git a/sound/core/seq/seq_memory.c b/sound/core/seq/seq_memory.c index 4bffe509f71..a3dc5e01e9f 100644 --- a/sound/core/seq/seq_memory.c +++ b/sound/core/seq/seq_memory.c @@ -151,7 +151,7 @@ int snd_seq_expand_var_event(const struct snd_seq_event *event, int count, char return len; newlen = len; if (size_aligned > 0) - newlen = ((len + size_aligned - 1) / size_aligned) * size_aligned; + newlen = roundup(len, size_aligned); if (count < newlen) return -EAGAIN; diff --git a/sound/core/sgbuf.c b/sound/core/sgbuf.c index c30669f14ac..cefd228cd2a 100644 --- a/sound/core/sgbuf.c +++ b/sound/core/sgbuf.c @@ -27,7 +27,7 @@ /* table entries are align to 32 */ #define SGBUF_TBL_ALIGN 32 -#define sgbuf_align_table(tbl) ((((tbl) + SGBUF_TBL_ALIGN - 1) / SGBUF_TBL_ALIGN) * SGBUF_TBL_ALIGN) +#define sgbuf_align_table(tbl) ALIGN((tbl), SGBUF_TBL_ALIGN) int snd_free_sgbuf_pages(struct snd_dma_buffer *dmab) { |