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-rw-r--r--drivers/md/raid5.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 5883ef0d95bf..08274b4b4009 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -6670,7 +6670,12 @@ static struct r5conf *setup_conf(struct mddev *mddev)
conf->shrinker.count_objects = raid5_cache_count;
conf->shrinker.batch = 128;
conf->shrinker.flags = 0;
- register_shrinker(&conf->shrinker);
+ if (register_shrinker(&conf->shrinker)) {
+ printk(KERN_ERR
+ "md/raid:%s: couldn't register shrinker.\n",
+ mdname(mddev));
+ goto abort;
+ }
sprintf(pers_name, "raid%d", mddev->new_level);
conf->thread = md_register_thread(raid5d, mddev, pers_name);