From 1a60d4c5a0c4028559585a74e48593b16e1ca9b2 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Mon, 16 Jan 2006 16:29:08 +0100
Subject: [ALSA] semaphore -> mutex (core part)
Semaphore to mutex conversion.
The conversion was generated via scripts, and the result was validated
automatically via a script as well.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/core/init.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'sound/core/init.c')
diff --git a/sound/core/init.c b/sound/core/init.c
index 75816688607..17fbd6c14fb 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -145,7 +145,7 @@ struct snd_card *snd_card_new(int idx, const char *xid,
init_waitqueue_head(&card->shutdown_sleep);
INIT_WORK(&card->free_workq, snd_card_free_thread, card);
#ifdef CONFIG_PM
- init_MUTEX(&card->power_lock);
+ mutex_init(&card->power_lock);
init_waitqueue_head(&card->power_sleep);
#endif
/* the control interface cannot be accessed from the user space until */
--
cgit v1.2.3-70-g09d2
From b3b0abe11d606fa2344793edd3d69b98b430b0d4 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Fri, 3 Mar 2006 14:08:43 +0100
Subject: [ALSA] return ENODEV for disconnected devices
Modules: ALSA Core
Add dummy functions that return -ENODEV for the struct file_operations
of a disconnected device. Without such functions, userspace would get
ENOTTY.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
sound/core/init.c | 42 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
(limited to 'sound/core/init.c')
diff --git a/sound/core/init.c b/sound/core/init.c
index 17fbd6c14fb..ad68761abba 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -169,11 +169,44 @@ struct snd_card *snd_card_new(int idx, const char *xid,
return NULL;
}
+static loff_t snd_disconnect_llseek(struct file *file, loff_t offset, int orig)
+{
+ return -ENODEV;
+}
+
+static ssize_t snd_disconnect_read(struct file *file, char __user *buf,
+ size_t count, loff_t *offset)
+{
+ return -ENODEV;
+}
+
+static ssize_t snd_disconnect_write(struct file *file, const char __user *buf,
+ size_t count, loff_t *offset)
+{
+ return -ENODEV;
+}
+
static unsigned int snd_disconnect_poll(struct file * file, poll_table * wait)
{
return POLLERR | POLLNVAL;
}
+static long snd_disconnect_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ return -ENODEV;
+}
+
+static int snd_disconnect_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ return -ENODEV;
+}
+
+static int snd_disconnect_fasync(int fd, struct file *file, int on)
+{
+ return -ENODEV;
+}
+
/**
* snd_card_disconnect - disconnect all APIs from the file-operations (user space)
* @card: soundcard structure
@@ -224,7 +257,16 @@ int snd_card_disconnect(struct snd_card *card)
memset(f_ops, 0, sizeof(*f_ops));
f_ops->owner = file->f_op->owner;
f_ops->release = file->f_op->release;
+ f_ops->llseek = snd_disconnect_llseek;
+ f_ops->read = snd_disconnect_read;
+ f_ops->write = snd_disconnect_write;
f_ops->poll = snd_disconnect_poll;
+ f_ops->unlocked_ioctl = snd_disconnect_ioctl;
+#ifdef CONFIG_COMPAT
+ f_ops->compat_ioctl = snd_disconnect_ioctl;
+#endif
+ f_ops->mmap = snd_disconnect_mmap;
+ f_ops->fasync = snd_disconnect_fasync;
s_f_ops->next = card->s_f_ops;
card->s_f_ops = s_f_ops;
--
cgit v1.2.3-70-g09d2