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-rw-r--r--sound/core/pcm_lib.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index 22aff180dd1f..e9d98be190c5 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -345,7 +345,9 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
new_hw_ptr = hw_base + pos;
}
__delta:
- delta = (new_hw_ptr - old_hw_ptr) % runtime->boundary;
+ delta = new_hw_ptr - old_hw_ptr;
+ if (delta < 0)
+ delta += runtime->boundary;
if (xrun_debug(substream, in_interrupt ?
XRUN_DEBUG_PERIODUPDATE : XRUN_DEBUG_HWPTRUPDATE)) {
char name[16];