Basically the xrun injection routine can simply call the standard helper snd_pcm_stop_xrun(), but with one exception: it may be called even when the stream is closed.
Make snd_pcm_stop_xrun() more robust and check the NULL runtime state, and simplify xrun injection code by calling it.
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/core/pcm.c | 7 +------ sound/core/pcm_native.c | 2 +- 2 files changed, 2 insertions(+), 7 deletions(-)
diff --git a/sound/core/pcm.c b/sound/core/pcm.c index 6f037a4b8b52..fdb9b92fc8d6 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -492,13 +492,8 @@ static void snd_pcm_xrun_injection_write(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { struct snd_pcm_substream *substream = entry->private_data; - struct snd_pcm_runtime *runtime;
- snd_pcm_stream_lock_irq(substream); - runtime = substream->runtime; - if (runtime && runtime->status->state == SNDRV_PCM_STATE_RUNNING) - __snd_pcm_xrun(substream); - snd_pcm_stream_unlock_irq(substream); + snd_pcm_stop_xrun(substream); }
static void snd_pcm_xrun_debug_read(struct snd_info_entry *entry, diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 20174d0c0527..66c90f486af9 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -1339,7 +1339,7 @@ int snd_pcm_stop_xrun(struct snd_pcm_substream *substream) unsigned long flags;
snd_pcm_stream_lock_irqsave(substream, flags); - if (snd_pcm_running(substream)) + if (substream->runtime && snd_pcm_running(substream)) __snd_pcm_xrun(substream); snd_pcm_stream_unlock_irqrestore(substream, flags); return 0;