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path: root/fs/ext4/mmp.c
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Diffstat (limited to 'fs/ext4/mmp.c')
-rw-r--r--fs/ext4/mmp.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
index 6eb1a6198..0a512aa81 100644
--- a/fs/ext4/mmp.c
+++ b/fs/ext4/mmp.c
@@ -98,10 +98,12 @@ static int read_mmp_block(struct super_block *sb, struct buffer_head **bh,
}
mmp = (struct mmp_struct *)((*bh)->b_data);
- if (le32_to_cpu(mmp->mmp_magic) == EXT4_MMP_MAGIC &&
- ext4_mmp_csum_verify(sb, mmp))
+ if (le32_to_cpu(mmp->mmp_magic) != EXT4_MMP_MAGIC)
+ ret = -EFSCORRUPTED;
+ else if (!ext4_mmp_csum_verify(sb, mmp))
+ ret = -EFSBADCRC;
+ else
return 0;
- ret = -EINVAL;
warn_exit:
ext4_warning(sb, "Error %d while reading MMP block %llu",