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authorTakashi Iwai <tiwai@suse.de>2010-08-05 11:17:04 +0200
committerTakashi Iwai <tiwai@suse.de>2010-08-05 11:17:04 +0200
commit74bf40f0793fed9e01eb6164c2ce63e8c27ca205 (patch)
treef41312c0943978842ac258873b29da04d72d0625 /arch/um/drivers/hostaudio_kern.c
parente71981343ad29b5d929f82ac56c0b27b8ea0e540 (diff)
parentc4685849b4d725ab80cd29f5e09f5f128b4724b5 (diff)
downloadblackbird-op-linux-74bf40f0793fed9e01eb6164c2ce63e8c27ca205.tar.gz
blackbird-op-linux-74bf40f0793fed9e01eb6164c2ce63e8c27ca205.zip
Merge branch 'topic/misc' into for-linus
Diffstat (limited to 'arch/um/drivers/hostaudio_kern.c')
-rw-r--r--arch/um/drivers/hostaudio_kern.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/um/drivers/hostaudio_kern.c b/arch/um/drivers/hostaudio_kern.c
index ae42695c3597..68142df76608 100644
--- a/arch/um/drivers/hostaudio_kern.c
+++ b/arch/um/drivers/hostaudio_kern.c
@@ -8,6 +8,7 @@
#include "linux/slab.h"
#include "linux/sound.h"
#include "linux/soundcard.h"
+#include "linux/smp_lock.h"
#include "asm/uaccess.h"
#include "init.h"
#include "os.h"
@@ -198,7 +199,10 @@ static int hostaudio_open(struct inode *inode, struct file *file)
if (file->f_mode & FMODE_WRITE)
w = 1;
+ lock_kernel();
ret = os_open_file(dsp, of_set_rw(OPENFLAGS(), r, w), 0);
+ unlock_kernel();
+
if (ret < 0) {
kfree(state);
return ret;
@@ -254,7 +258,9 @@ static int hostmixer_open_mixdev(struct inode *inode, struct file *file)
if (file->f_mode & FMODE_WRITE)
w = 1;
+ lock_kernel();
ret = os_open_file(mixer, of_set_rw(OPENFLAGS(), r, w), 0);
+ unlock_kernel();
if (ret < 0) {
printk(KERN_ERR "hostaudio_open_mixdev failed to open '%s', "
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