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authorTakashi Iwai <takashi.iwai@gmail.com>2006-03-06 15:42:51 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-06 18:40:44 -0800
commit2fbf182ed00a71c35e53329c2010df2baf8a89c6 (patch)
tree5b66a27b68a28b3b9f7e308519cc72315e69f4e7 /sound/core
parent[PATCH] time: add barrier after updating jiffies_64 (diff)
downloadlinux-dev-2fbf182ed00a71c35e53329c2010df2baf8a89c6.tar.xz
linux-dev-2fbf182ed00a71c35e53329c2010df2baf8a89c6.zip
[PATCH] alsa: fix error paths in snd_ctl_elem_add()
Fix bugs in error paths of snd_ctl_elem_add() - NULL reference - double free (already freed in snd_ctl_add()) Signed-off-by: Takashi Iwai <tiwai@suse.de> Cc: Jaroslav Kysela <perex@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/control.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/sound/core/control.c b/sound/core/control.c
index abd62f943726..0c29679a8576 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -959,17 +959,15 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file,
kctl.private_free = snd_ctl_elem_user_free;
_kctl = snd_ctl_new(&kctl, access);
if (_kctl == NULL) {
- kfree(_kctl->private_data);
+ kfree(ue);
return -ENOMEM;
}
_kctl->private_data = ue;
for (idx = 0; idx < _kctl->count; idx++)
_kctl->vd[idx].owner = file;
err = snd_ctl_add(card, _kctl);
- if (err < 0) {
- snd_ctl_free_one(_kctl);
+ if (err < 0)
return err;
- }
down_write(&card->controls_rwsem);
card->user_ctl_count++;