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| author | Takashi Iwai <tiwai@suse.de> | 2012-11-08 14:36:18 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-11-08 14:36:18 +0100 |
| commit | 8bb4d9ce08b0a92ca174e41d92c180328f86173f (patch) | |
| tree | ed2d1ed4e401736de2cc67f8660d43b156d3a0b4 /sound/core/oss | |
| parent | 19a62823eae453619604636082085812c14ee391 (diff) | |
| download | linux-8bb4d9ce08b0a92ca174e41d92c180328f86173f.tar.gz linux-8bb4d9ce08b0a92ca174e41d92c180328f86173f.tar.bz2 linux-8bb4d9ce08b0a92ca174e41d92c180328f86173f.zip | |
ALSA: Fix card refcount unbalance
There are uncovered cases whether the card refcount introduced by the
commit a0830dbd isn't properly increased or decreased:
- OSS PCM and mixer success paths
- When lookup function gets NULL
This patch fixes these places.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=50251
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/oss')
| -rw-r--r-- | sound/core/oss/mixer_oss.c | 1 | ||||
| -rw-r--r-- | sound/core/oss/pcm_oss.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c index a9a2e63c0222..e8a1d18774b2 100644 --- a/sound/core/oss/mixer_oss.c +++ b/sound/core/oss/mixer_oss.c @@ -76,6 +76,7 @@ static int snd_mixer_oss_open(struct inode *inode, struct file *file) snd_card_unref(card); return -EFAULT; } + snd_card_unref(card); return 0; } diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index f337b66a020b..4c1cc51772e6 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -2454,6 +2454,7 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file) mutex_unlock(&pcm->open_mutex); if (err < 0) goto __error; + snd_card_unref(pcm->card); return err; __error: |