drbd: drbd_send_uuids() and its variants: Return 0 upon success and an error code otherwise

Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>

drivers/block/drbd/drbd_main.c

@@ -872,7 +872,7 @@ int _drbd_send_uuids(struct drbd_conf *mdev, u64 uuid_flags)
 	int i;
 
 	if (!get_ldev_if_state(mdev, D_NEGOTIATING))
-		return 1;
+		return 0;
 
 	for (i = UI_CURRENT; i < UI_SIZE; i++)
 		p.uuid[i] = mdev->ldev ? cpu_to_be64(mdev->ldev->md.uuid[i]) : 0;
@@ -886,7 +886,7 @@ int _drbd_send_uuids(struct drbd_conf *mdev, u64 uuid_flags)
 
 	put_ldev(mdev);
 
-	return !drbd_send_cmd(mdev, &mdev->tconn->data, P_UUIDS, &p.head, sizeof(p));
+	return drbd_send_cmd(mdev, &mdev->tconn->data, P_UUIDS, &p.head, sizeof(p));
 }
 
 int drbd_send_uuids(struct drbd_conf *mdev)

drivers/block/drbd/drbd_receiver.c

@@ -765,7 +765,7 @@ int drbd_connected(int vnr, void *p, void *data)
 
 	ok &= !drbd_send_sync_param(mdev);
 	ok &= drbd_send_sizes(mdev, 0, 0);
-	ok &= drbd_send_uuids(mdev);
+	ok &= !drbd_send_uuids(mdev);
 	ok &= !drbd_send_state(mdev);
 	clear_bit(USE_DEGR_WFC_T, &mdev->flags);
 	clear_bit(RESIZE_PENDING, &mdev->flags);