From: Colin Ian King colin.king@canonical.com
commit fbbbbd2f28aec991f3fbc248df211550fbdfd58c upstream.
There are two cases where u32 variables n and err are being checked for less than zero error values, the checks is always false because the variables are not signed. Fix this by making the variables ints.
Addresses-Coverity: ("Unsigned compared against 0") Fixes: 345c0dbf3a30 ("ext4: protect journal inode's blocks using block_validity") Signed-off-by: Colin Ian King colin.king@canonical.com Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Ashwin H ashwinh@vmware.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- fs/ext4/block_validity.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/ext4/block_validity.c +++ b/fs/ext4/block_validity.c @@ -142,7 +142,8 @@ static int ext4_protect_reserved_inode(s struct inode *inode; struct ext4_sb_info *sbi = EXT4_SB(sb); struct ext4_map_blocks map; - u32 i = 0, err = 0, num, n; + u32 i = 0, num; + int err = 0, n;
if ((ino < EXT4_ROOT_INO) || (ino > le32_to_cpu(sbi->s_es->s_inodes_count)))