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>

parent a30427d9

fs/char_dev.c

+1 −4

Original line number	Diff line number	Diff line
		@@ -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;