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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-15 15:44:51 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-15 15:44:51 +1000
commit43d2548bb2ef7e6d753f91468a746784041e522d (patch)
tree77d13fcd48fd998393abb825ec36e2b732684a73 /sound/sound_core.c
parent585583d95c5660973bc0cf64add517b040acd8a4 (diff)
parent85082fd7cbe3173198aac0eb5e85ab1edcc6352c (diff)
Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-build
Manual fixup of: arch/powerpc/Kconfig
Diffstat (limited to 'sound/sound_core.c')
-rw-r--r--sound/sound_core.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/sound_core.c b/sound/sound_core.c
index 46daca17550..dcfc1d5ce63 100644
--- a/sound/sound_core.c
+++ b/sound/sound_core.c
@@ -37,6 +37,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/fs.h>
@@ -464,6 +465,8 @@ int soundcore_open(struct inode *inode, struct file *file)
struct sound_unit *s;
const struct file_operations *new_fops = NULL;
+ lock_kernel ();
+
chain=unit&0x0F;
if(chain==4 || chain==5) /* dsp/audio/dsp16 */
{
@@ -511,9 +514,11 @@ int soundcore_open(struct inode *inode, struct file *file)
file->f_op = fops_get(old_fops);
}
fops_put(old_fops);
+ unlock_kernel();
return err;
}
spin_unlock(&sound_loader_lock);
+ unlock_kernel();
return -ENODEV;
}