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snd/PCM: fasync BKL pushdown 

Chances are this is unneeded, but the code is twisty enough that it is hard
to tell.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Jonathan Corbet 2008-06-23 17:40:43 -06:00
parent 70b028b7ea
commit 2db9f0a35a
1 changed files with 6 additions and 2 deletions
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8
sound/core/pcm_native.c
View File

@ -22,6 +22,7 @@
#include <linux/mm.h>
#include <linux/file.h>
#include <linux/slab.h>
#include <linux/smp_lock.h>
#include <linux/time.h>
#include <linux/pm_qos_params.h>
#include <linux/uio.h>
@ -3249,14 +3250,17 @@ 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;
int err = -ENXIO;
lock_kernel();
pcm_file = file->private_data;
substream = pcm_file->substream;
snd_assert(substream != NULL, return -ENXIO);
snd_assert(substream != NULL, goto out);
runtime = substream->runtime;
err = fasync_helper(fd, file, on, &runtime->fasync);
out:
unlock_kernel();
if (err < 0)
return err;
return 0;