uinput: BKL pushdown

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
git-mirror · Jul 2, 2008 · 8702965 · 8702965
1 parent f138e48
commit 8702965
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
@@ -37,6 +37,7 @@
 #include <linux/fs.h>
 #include <linux/miscdevice.h>
 #include <linux/uinput.h>
+#include <linux/smp_lock.h>
 
 static int uinput_dev_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
 {
@@ -222,13 +223,15 @@ static int uinput_open(struct inode *inode, struct file *file)
 	if (!newdev)
 		return -ENOMEM;
 
+	lock_kernel();
 	mutex_init(&newdev->mutex);
 	spin_lock_init(&newdev->requests_lock);
 	init_waitqueue_head(&newdev->requests_waitq);
 	init_waitqueue_head(&newdev->waitq);
 	newdev->state = UIST_NEW_DEVICE;
 
 	file->private_data = newdev;
+	unlock_kernel();
 
 	return 0;
 }