From: Zhu Yanjun <yanjun.zhu@linux.dev> stable inclusion from stable-v6.6.33 commit fe3a28db0361af2921abf6ffdb25cad8481b5093 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IAD6H2 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ Upstream commit 07d1b99825f40f9c0d93e6b99d79a08d0717bac1 ] When a mutex lock is not used any more, the function mutex_destroy should be called to mark the mutex lock uninitialized. Fixes: f2298c0403b0 ("null_blk: multi queue aware block test driver") Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev> Link: https://lore.kernel.org/r/20240425171635.4227-1-yanjun.zhu@linux.dev Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Wang Hai <wanghai38@huawei.com> --- drivers/block/null_blk/main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c index c70c1b9caf2f..58384310c81f 100644 --- a/drivers/block/null_blk/main.c +++ b/drivers/block/null_blk/main.c @@ -2365,6 +2365,8 @@ static void __exit null_exit(void) if (g_queue_mode == NULL_Q_MQ && shared_tags) blk_mq_free_tag_set(&tag_set); + + mutex_destroy(&lock); } module_init(null_init); -- 2.17.1