diff options
Diffstat (limited to 'sound/core/pcm_lib.c')
| -rw-r--r-- | sound/core/pcm_lib.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index 063c675177a9..fbb2e391591e 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -222,8 +222,9 @@ static int snd_pcm_update_hw_ptr_interrupt(struct snd_pcm_substream *substream) hw_ptr_interrupt = runtime->hw_ptr_interrupt + runtime->period_size; delta = new_hw_ptr - hw_ptr_interrupt; if (hw_ptr_interrupt >= runtime->boundary) { - hw_ptr_interrupt %= runtime->boundary; - if (!hw_base) /* hw_base was already lapped; recalc delta */ + hw_ptr_interrupt -= runtime->boundary; + if (hw_base < runtime->boundary / 2) + /* hw_base was already lapped; recalc delta */ delta = new_hw_ptr - hw_ptr_interrupt; } if (delta < 0) { @@ -241,7 +242,7 @@ static int snd_pcm_update_hw_ptr_interrupt(struct snd_pcm_substream *substream) delta = 0; } else { hw_base += runtime->buffer_size; - if (hw_base == runtime->boundary) + if (hw_base >= runtime->boundary) hw_base = 0; new_hw_ptr = hw_base + pos; } @@ -296,7 +297,7 @@ int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream) return 0; } hw_base += runtime->buffer_size; - if (hw_base == runtime->boundary) + if (hw_base >= runtime->boundary) hw_base = 0; new_hw_ptr = hw_base + pos; } |