md/raid1: If md_integrity_register() failed,run() must free the mem
Signed-off-by: majianpeng <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 4a40a20..2424408 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2636,11 +2636,13 @@
return ERR_PTR(err);
}
+static int stop(struct mddev *mddev);
static int run(struct mddev *mddev)
{
struct r1conf *conf;
int i;
struct md_rdev *rdev;
+ int ret;
if (mddev->level != 1) {
printk(KERN_ERR "md/raid1:%s: raid level not set to mirroring (%d)\n",
@@ -2705,7 +2707,11 @@
mddev->queue->backing_dev_info.congested_data = mddev;
blk_queue_merge_bvec(mddev->queue, raid1_mergeable_bvec);
}
- return md_integrity_register(mddev);
+
+ ret = md_integrity_register(mddev);
+ if (ret)
+ stop(mddev);
+ return ret;
}
static int stop(struct mddev *mddev)
