drbd: Do not Oops when C_STANDALONE when uuid gets generated

Got introduces with

commit 0c3f34516e8c5a1a0ba3585a7777d32bbbdf4ecb
Author: Philipp Reisner <philipp.reisner@linbit.com>
Date:   Mon May 17 16:10:43 2010 +0200

    drbd: Create new current UUID as late as possible

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index c144509..7e057b0 100644 (file)
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -1354,7 +1354,10 @@ static int w_new_current_uuid(struct drbd_conf *mdev, struct drbd_work *w, int c
 {
        if (get_ldev(mdev)) {
                drbd_uuid_new_current(mdev);
-               drbd_send_uuids(mdev);
+               if (get_net_conf(mdev)) {
+                       drbd_send_uuids(mdev);
+                       put_net_conf(mdev);
+               }
                drbd_md_sync(mdev);
                put_ldev(mdev);
        }