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| author | Takashi Iwai <tiwai@suse.de> | 2009-07-05 11:44:46 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-07-05 11:44:46 +0200 |
| commit | aba6653617754e12763a0d3c9dda332b66190a50 (patch) | |
| tree | 7facb76ceb0c3e2a01daaeb13bac3f145ac9eb9c /sound | |
| parent | 02358fcfa54ce018a0bb56ca9f5a898de574a9d3 (diff) | |
| download | kernel_samsung_smdk4412-aba6653617754e12763a0d3c9dda332b66190a50.zip kernel_samsung_smdk4412-aba6653617754e12763a0d3c9dda332b66190a50.tar.gz kernel_samsung_smdk4412-aba6653617754e12763a0d3c9dda332b66190a50.tar.bz2 | |
ALSA: hda - Fix error path in the sanity check in azx_pcm_open()
Release resources cleanly after errors in the sanity check in
azx_pcm_open().
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 1877d95..16e09d7 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -1455,6 +1455,17 @@ static int azx_pcm_open(struct snd_pcm_substream *substream) return err; } snd_pcm_limit_hw_rates(runtime); + /* sanity check */ + if (snd_BUG_ON(!runtime->hw.channels_min) || + snd_BUG_ON(!runtime->hw.channels_max) || + snd_BUG_ON(!runtime->hw.formats) || + snd_BUG_ON(!runtime->hw.rates)) { + azx_release_device(azx_dev); + hinfo->ops.close(hinfo, apcm->codec, substream); + snd_hda_power_down(apcm->codec); + mutex_unlock(&chip->open_mutex); + return -EINVAL; + } spin_lock_irqsave(&chip->reg_lock, flags); azx_dev->substream = substream; azx_dev->running = 0; @@ -1463,13 +1474,6 @@ static int azx_pcm_open(struct snd_pcm_substream *substream) runtime->private_data = azx_dev; snd_pcm_set_sync(substream); mutex_unlock(&chip->open_mutex); - - if (snd_BUG_ON(!runtime->hw.channels_min || !runtime->hw.channels_max)) - return -EINVAL; - if (snd_BUG_ON(!runtime->hw.formats)) - return -EINVAL; - if (snd_BUG_ON(!runtime->hw.rates)) - return -EINVAL; return 0; } |