md-cluster: unregister thread if err happened

GuoqingJiang · shligit · commit 5b0fb33e8aa1 · 2016-05-04T12:39:35.000-07:00
The two threads need to be unregistered if a node
can't join cluster successfully.

Reviewed-by: NeilBrown &lt;neilb@suse.com&gt;
Signed-off-by: Guoqing Jiang &lt;gqjiang@suse.com&gt;
Signed-off-by: Shaohua Li &lt;shli@fb.com&gt;
diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c
@@ -818,6 +818,8 @@ static int join(struct mddev *mddev, int nodes)
 
 	return 0;
 err:
+	md_unregister_thread(&cinfo->recovery_thread);
+	md_unregister_thread(&cinfo->recv_thread);
 	lockres_free(cinfo->message_lockres);
 	lockres_free(cinfo->token_lockres);
 	lockres_free(cinfo->ack_lockres);
