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Commit 2db9f0a3 authored by Jonathan Corbet's avatar Jonathan Corbet
Browse files

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: default avatarJonathan Corbet <corbet@lwn.net>
parent 70b028b7

sound/core/pcm_native.c

+6 −2
Original line number Diff line number Diff line
@@ -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;