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-rw-r--r--sound/core/pcm_lib.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index e73b6e4135f6..75308ddc54ca 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -2112,6 +2112,9 @@ int pcm_lib_apply_appl_ptr(struct snd_pcm_substream *substream,
snd_pcm_uframes_t old_appl_ptr = runtime->control->appl_ptr;
int ret;
+ if (old_appl_ptr == appl_ptr)
+ return 0;
+
runtime->control->appl_ptr = appl_ptr;
if (substream->ops->ack) {
ret = substream->ops->ack(substream);