Re: [PATCH] kselftests: cgroup: Avoid the reuse of fd after it is deallocated

On Mon, Nov 11, 2019 at 09:16:55PM -0500, Hewenliang wrote:

It is necessary to set fd to -1 when inotify_add_watch() fails in cg_prepare_for_wait. Otherwise the fd which has been closed in cg_prepare_for_wait may be misused in other functions such as cg_enter_and_wait_for_frozen and cg_freeze_wait.

Fixes: 5313bfe425c8 ("selftests: cgroup: add freezer controller self-tests") Signed-off-by: Hewenliang hewenliang4@huawei.com

Applied to cgroup/for-5.5.

Thanks.