aboutsummaryrefslogtreecommitdiffstats
path: root/sound
diff options
context:
space:
mode:
authorJonathan Corbet <corbet@lwn.net>2008-06-23 17:40:43 -0600
committerJonathan Corbet <corbet@lwn.net>2008-07-02 15:06:28 -0600
commit2db9f0a35a4e4ad7cee756a4e0dabb7c1c8b6c72 (patch)
tree32dd2d06d650305c6bff129a92545c73d6bc9295 /sound
parent70b028b7ea94f1b36c61f3ee1c921cc3a87812e6 (diff)
downloadmrst-s0i3-test-2db9f0a35a4e4ad7cee756a4e0dabb7c1c8b6c72.tar.gz
mrst-s0i3-test-2db9f0a35a4e4ad7cee756a4e0dabb7c1c8b6c72.tar.xz
mrst-s0i3-test-2db9f0a35a4e4ad7cee756a4e0dabb7c1c8b6c72.zip
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>
Diffstat (limited to 'sound')
-rw-r--r--sound/core/pcm_native.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 61f5d425b63..c49b9d9e303 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -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;