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authorTakashi Iwai <tiwai@suse.de>2006-05-15 21:49:05 +0400
committerJaroslav Kysela <perex@suse.cz>2006-06-22 23:33:37 +0400
commit746df94898554b3d8e91d855e934852e626c701c (patch)
treedc312e426d52804d98080af18f12f5b14010d2e5 /sound/core/sound.c
parent0defb2672d7cde8d048eec35c183da7b88adbd9e (diff)
downloadlinux-746df94898554b3d8e91d855e934852e626c701c.tar.xz
[ALSA] Fix rwlock around snd_iprintf() in sound core
Fixed rwlock around snd_iprintf() in sound core part. Replaced with mutex. Also, make mutex and flags static variables with addition of snd_card_locked() function (just for sound.c). Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/sound.c')
-rw-r--r--sound/core/sound.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/sound/core/sound.c b/sound/core/sound.c
index 8313f97907d8..02c8cc4ebffe 100644
--- a/sound/core/sound.c
+++ b/sound/core/sound.c
@@ -81,14 +81,9 @@ extern struct class *sound_class;
*/
void snd_request_card(int card)
{
- int locked;
-
if (! current->fs->root)
return;
- read_lock(&snd_card_rwlock);
- locked = snd_cards_lock & (1 << card);
- read_unlock(&snd_card_rwlock);
- if (locked)
+ if (snd_card_locked(card))
return;
if (card < 0 || card >= cards_limit)
return;