Remove the lock_kernel() call from chrdev_open()

All in-kernel char device open() functions now either have their own
lock_kernel() calls or clearly do not need one.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>

1 files changed, 1 insertions, 4 deletions

diff --git a/fs/char_dev.c b/fs/char_dev.c
index a54d69369b2f..3cb7cda3d780 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -394,11 +394,8 @@ static int chrdev_open(struct inode *inode, struct file *filp)
                 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;