diff --git a/fs/char_dev.c b/fs/char_dev.c
index a54d693..3cb7cda 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -394,11 +394,8 @@
 		cdev_put(p);
 		return -ENXIO;
 	}
-	if (filp->f_op->open) {
-		lock_kernel();
+	if (filp->f_op->open)
 		ret = filp->f_op->open(inode,filp);
-		unlock_kernel();
-	}
 	if (ret)
 		cdev_put(p);
 	return ret;