diff options
Diffstat (limited to 'fs/ext4/mmp.c')
| -rw-r--r-- | fs/ext4/mmp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c index fe7c63f4717..f9b551561d2 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; |