From 30c8946566f32493f7f1143437319c42c8a542e9 Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Wed, 21 Sep 2016 09:07:13 -0700 Subject: [PATCH] raid5: handle register_shrinker failure register_shrinker() now can fail. When it happens, shrinker.nr_deferred is null. We use it to determine if unregister_shrinker is required. Signed-off-by: Shaohua Li --- drivers/md/raid5.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 08274b4b4009..f94472dd0323 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -6372,7 +6372,7 @@ static void free_conf(struct r5conf *conf) { if (conf->log) r5l_exit_log(conf->log); - if (conf->shrinker.seeks) + if (conf->shrinker.nr_deferred) unregister_shrinker(&conf->shrinker); free_thread_groups(conf);