mainline inclusion
from mainline-5.2-rc1
commit fbbbbd2f
category: bugfix
bugzilla: 16402
CVE: NA
---------------------------

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: 345c0dbf ("ext4: protect journal inode's blocks using block_validity")
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NTheodore Ts'o <tytso@mit.edu>
Signed-off-by: Nyangerkun <yangerkun@huawei.com>
Reviewed-by: Nzhangyi (F) <yi.zhang@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>