tree a77165579a22e732bfbf9e28a55a5ffdba51a142
parent 2734d6c1b1a089fb593ef6a23d4b70903526fe0c
author Ye Bin <yebin10@huawei.com> 1626143248 +0800
committer Theodore Ts'o <tytso@mit.edu> 1627039889 -0400

ext4: fix potential uninitialized access to retval in kmmpd

if (!ext4_has_feature_mmp(sb)) then retval can be unitialized before
we jump to the wait_to_exit label.

Fixes: 61bb4a1c417e ("ext4: fix possible UAF when remounting r/o a mmp-protected file system")
Signed-off-by: Ye Bin <yebin10@huawei.com>
Link: https://lore.kernel.org/r/20210713022728.2533770-1-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>