From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Sat, 2 Apr 2016 22:13:38 +0000 (-0400)
Subject: ext4 crypto: fix some error handling
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=22823e95193a0598b5681481eee9940e4128ad35;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

ext4 crypto: fix some error handling

commit 4762cc3fbbd89e5fd316d6e4d3244a8984444f8d upstream.

We should be testing for -ENOMEM but the minus sign is missing.

Fixes: c9af28fdd449 ('ext4 crypto: don't let data integrity writebacks fail with ENOMEM')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index 5c72ae5d62a6..6ca56f5f72b5 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -492,7 +492,7 @@ int ext4_bio_write_page(struct ext4_io_submit *io,
 		data_page = ext4_encrypt(inode, page, gfp_flags);
 		if (IS_ERR(data_page)) {
 			ret = PTR_ERR(data_page);
-			if (ret == ENOMEM && wbc->sync_mode == WB_SYNC_ALL) {
+			if (ret == -ENOMEM && wbc->sync_mode == WB_SYNC_ALL) {
 				if (io->io_bio) {
 					ext4_io_submit(io);
 					congestion_wait(BLK_RW_ASYNC, HZ/50);