| From 3ae1dafbe68357a549d224ae276cacf5f7992850 Mon Sep 17 00:00:00 2001 |
| From: Colin Ian King <colin.king@canonical.com> |
| Date: Fri, 10 May 2019 22:06:38 -0400 |
| Subject: ext4: unsigned int compared against zero |
| |
| [ Upstream commit fbbbbd2f28aec991f3fbc248df211550fbdfd58c ] |
| |
| 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: Sasha Levin <sashal@kernel.org> |
| --- |
| fs/ext4/block_validity.c | 3 ++- |
| 1 file changed, 2 insertions(+), 1 deletion(-) |
| |
| diff --git a/fs/ext4/block_validity.c b/fs/ext4/block_validity.c |
| index cd7129b622f85..e8e27cdc2f677 100644 |
| --- a/fs/ext4/block_validity.c |
| +++ b/fs/ext4/block_validity.c |
| @@ -142,7 +142,8 @@ static int ext4_protect_reserved_inode(struct super_block *sb, u32 ino) |
| 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))) |
| -- |
| 2.20.1 |
| |
