Commit 9e216e8a authored by Jaroslav Kysela's avatar Jaroslav Kysela
Browse files

ALSA: pcm core - add a safe check to the silence filling function



In situation when appl_ptr is far greater then hw_ptr, the hw_avail value
can be greater than buffer_size. Check for this.
Signed-off-by: default avatarJaroslav Kysela <perex@perex.cz>
parent 79c944ad
......@@ -67,6 +67,8 @@ void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_ufram
} else {
if (new_hw_ptr == ULONG_MAX) { /* initialization */
snd_pcm_sframes_t avail = snd_pcm_playback_hw_avail(runtime);
if (avail > runtime->buffer_size)
avail = runtime->buffer_size;
runtime->silence_filled = avail > 0 ? avail : 0;
runtime->silence_start = (runtime->status->hw_ptr +
runtime->silence_filled) %
......
Supports Markdown
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment