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Added the check to avoid NULL pointer dereference in snd_pcm_areas_copy

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Jaroslav Kysela 2001-04-10 08:26:38 +00:00
parent efb7a55efc
commit 21cbbc6d0d
1 changed files with 5 additions and 4 deletions
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9
src/pcm/pcm_share.c
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@ -865,10 +865,11 @@ static int snd_pcm_share_start(snd_pcm_t *pcm)
snd_pcm_uframes_t cont = pcm->buffer_size - offset; snd_pcm_uframes_t cont = pcm->buffer_size - offset;
if (cont < frames) if (cont < frames)
frames = cont; frames = cont;
snd_pcm_areas_copy(pcm->running_areas, offset, if (pcm->stopped_areas != NULL)
pcm->stopped_areas, xfer, snd_pcm_areas_copy(pcm->running_areas, offset,
pcm->channels, frames, pcm->stopped_areas, xfer,
pcm->format); pcm->channels, frames,
pcm->format);
xfer += frames; xfer += frames;
} }
snd_pcm_mmap_appl_forward(pcm, hw_avail); snd_pcm_mmap_appl_forward(pcm, hw_avail);