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authorOswald Buddenhagen <oswald.buddenhagen@gmx.de>2023-05-05 17:52:44 +0200
committerTakashi Iwai <tiwai@suse.de>2023-05-05 18:23:53 +0200
commitee2dd703470242f1672403e83f827391afeca808 (patch)
tree3f7332d3ebd1541864535e69c8547fc04ed0b592 /sound
parent6ffa6f397e80bc196ed554e4dabfe43ecc0fe7c1 (diff)
ALSA: pcm: use exit controlled loop in snd_pcm_playback_silence()
We already know that `frames` is greater than zero, because we just checked it. So we don't need to check the loop condition on the first iteration. Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de> Link: https://lore.kernel.org/r/20230505155244.2312199-7-oswald.buddenhagen@gmx.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/core/pcm_lib.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index 17fc80a654be..9c121a921b04 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -123,14 +123,14 @@ void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_ufram
if (frames == 0)
return;
ofs = (runtime->silence_start + runtime->silence_filled) % runtime->buffer_size;
- while (frames > 0) {
+ do {
transfer = ofs + frames > runtime->buffer_size ? runtime->buffer_size - ofs : frames;
err = fill_silence_frames(substream, ofs, transfer);
snd_BUG_ON(err < 0);
runtime->silence_filled += transfer;
frames -= transfer;
ofs = 0;
- }
+ } while (frames > 0);
snd_pcm_dma_buffer_sync(substream, SNDRV_DMA_SYNC_DEVICE);
}