It's simply calling fasync_helper().
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/core/pcm_native.c | 9 ++------- 1 files changed, 2 insertions(+), 7 deletions(-)
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 8728876..cadba30 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -3303,18 +3303,13 @@ static int snd_pcm_fasync(int fd, struct file * file, int on) struct snd_pcm_file * pcm_file; struct snd_pcm_substream *substream; struct snd_pcm_runtime *runtime; - int err = -ENXIO;
- lock_kernel(); pcm_file = file->private_data; substream = pcm_file->substream; if (PCM_RUNTIME_CHECK(substream)) - goto out; + return -ENXIO; runtime = substream->runtime; - err = fasync_helper(fd, file, on, &runtime->fasync); -out: - unlock_kernel(); - return err; + return fasync_helper(fd, file, on, &runtime->fasync); }
/*