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-rw-r--r--sound/core/pcm.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index bf8f412988b8..fbbbcd20c4cc 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -629,6 +629,9 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
substream->number = idx;
substream->stream = stream;
sprintf(substream->name, "subdevice #%i", idx);
+ snprintf(substream->latency_id, sizeof(substream->latency_id),
+ "ALSA-PCM%d-%d%c%d", pcm->card->number, pcm->device,
+ (stream ? 'c' : 'p'), idx);
substream->buffer_bytes_max = UINT_MAX;
if (prev == NULL)
pstr->substream = substream;