[PATCH] ALSA: pcm: Fix source frame count calculation

From: Sreeraj S Kurup

Date: Mon Nov 02 2026 - 10:06:47 EST


Pass the updated frame count to the "src_frames()" callback.

When the next plugin handles fewer frames than requested, use the
actual frame count instead of the original requested count.

This ensures the correct number of source frames is calculated.

Signed-off-by: Sreeraj S Kurup <sreekuttan2156239@xxxxxxxxx>
---
sound/core/oss/pcm_plugin.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/core/oss/pcm_plugin.c b/sound/core/oss/pcm_plugin.c
index acf5ca663ba8..3de713779993 100644
--- a/sound/core/oss/pcm_plugin.c
+++ b/sound/core/oss/pcm_plugin.c
@@ -604,7 +604,7 @@ snd_pcm_sframes_t snd_pcm_plug_write_transfer(struct snd_pcm_substream *plug, st
if (err != frames1) {
frames = err;
if (plugin->src_frames) {
- frames = plugin->src_frames(plugin, frames1);
+ frames = plugin->src_frames(plugin, err);
if (frames <= 0)
return frames;
}
--
2.55.0