diff options
| author | Jaroslav Kysela <perex@perex.cz> | 2023-05-16 08:57:31 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2023-05-16 08:59:20 +0200 |
| commit | 3661bdae35961e4a4dd67a60682550e30b878207 (patch) | |
| tree | aab463fb014c06583b34f1b87bcd3813c9c90495 | |
| parent | 904f0f7e7a29244c05e5874bc36486638d1f7e7f (diff) | |
| download | alsa-lib-3661bdae35961e4a4dd67a60682550e30b878207.tar.gz | |
pcm: hw - prevent divide by zero for broken apps
Fixes: https://github.com/alsa-project/alsa-lib/issues/318
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
| -rw-r--r-- | src/pcm/pcm_hw.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/pcm/pcm_hw.c b/src/pcm/pcm_hw.c index 8ffebed9..26ff62c2 100644 --- a/src/pcm/pcm_hw.c +++ b/src/pcm/pcm_hw.c @@ -742,6 +742,9 @@ static int snd_pcm_hw_drain(snd_pcm_t *pcm) if (pcm->stream != SND_PCM_STREAM_PLAYBACK) goto __skip_silence; + /* stream probably in SETUP, prevent divide by zero */ + if (pcm->period_size == 0) + goto __skip_silence; if (hw->drain_silence == 0 || hw->perfect_drain) goto __skip_silence; snd_pcm_sw_params_current_no_lock(pcm, &sw_params); |