summaryrefslogtreecommitdiff
path: root/fs/ext4/mmp.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/ext4/mmp.c')
-rw-r--r--fs/ext4/mmp.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
index fe7c63f4717e..f9b551561d2c 100644
--- a/fs/ext4/mmp.c
+++ b/fs/ext4/mmp.c
@@ -80,6 +80,8 @@ static int read_mmp_block(struct super_block *sb, struct buffer_head **bh,
* is not blocked in the elevator. */
if (!*bh)
*bh = sb_getblk(sb, mmp_block);
+ if (!*bh)
+ return -ENOMEM;
if (*bh) {
get_bh(*bh);
lock_buffer(*bh);
@@ -91,7 +93,7 @@ static int read_mmp_block(struct super_block *sb, struct buffer_head **bh,
*bh = NULL;
}
}
- if (!*bh) {
+ if (unlikely(!*bh)) {
ext4_warning(sb, "Error while reading MMP block %llu",
mmp_block);
return -EIO;