From cbbb05703da4b205bb17fde555d3b2926d8b3194 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Mon, 31 Aug 2009 16:32:12 +0200 Subject: ALSA: allocation may fail in snd_pcm_oss_change_params() Allocation may fail, show if it did. Signed-off-by: Roel Kluin [Additional fix for invalid runtime->oss.prepare flag set by tiwai] Signed-off-by: Takashi Iwai --- sound/core/oss/pcm_oss.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'sound/core/oss') 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)); -- cgit v1.2.3