From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 17 Dec 2009 09:52:13 +0000 (-0500)
Subject: dio: fix use-after-free
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=06777d308f8f9ddb67798d34bf193101a4bdf06c;p=openwrt%2Fstaging%2Fblogic.git

dio: fix use-after-free

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/direct-io.c b/fs/direct-io.c
index 4012885d027f..e82adc2debb7 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -1206,7 +1206,7 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
 	 * NOTE: filesystems with their own locking have to handle this
 	 * on their own.
 	 */
-	if (dio->flags & DIO_LOCKING) {
+	if (flags & DIO_LOCKING) {
 		if (unlikely((rw & WRITE) && retval < 0)) {
 			loff_t isize = i_size_read(inode);
 			if (end > isize)