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| author | Roel Kluin <roel.kluin@gmail.com> | 2009-08-31 16:32:12 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-08-31 16:33:23 +0200 |
| commit | cbbb05703da4b205bb17fde555d3b2926d8b3194 (patch) | |
| tree | 624bf0586117f66cd1301a8c1027ac76764c46ff | |
| parent | f1d269bac24e5ddb3a0650aaeb4117aa806b99f1 (diff) | |
| download | linux-cbbb05703da4b205bb17fde555d3b2926d8b3194.tar.bz2 | |
ALSA: allocation may fail in snd_pcm_oss_change_params()
Allocation may fail, show if it did.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
[Additional fix for invalid runtime->oss.prepare flag set by tiwai]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | sound/core/oss/pcm_oss.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index dbe406b82591..d35d61b3292c 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -1043,10 +1043,15 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream) runtime->oss.channels = params_channels(params); runtime->oss.rate = params_rate(params); - runtime->oss.params = 0; - runtime->oss.prepare = 1; vfree(runtime->oss.buffer); runtime->oss.buffer = vmalloc(runtime->oss.period_bytes); + if (!runtime->oss.buffer) { + err = -ENOMEM; + goto failure; + } + + runtime->oss.params = 0; + runtime->oss.prepare = 1; runtime->oss.buffer_used = 0; if (runtime->dma_area) snd_pcm_format_set_silence(runtime->format, runtime->dma_area, bytes_to_samples(runtime, runtime->dma_bytes)); |