drbd: drbd_send_sync_param(): Return 0 upon success and an error code otherwise

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

drivers/block/drbd/drbd_main.c

@@ -769,7 +769,7 @@ int drbd_send_sync_param(struct drbd_conf *mdev)
 {
 	struct p_rs_param_95 *p;
 	struct socket *sock;
-	int size, rv;
+	int size, err;
 	const int apv = mdev->tconn->agreed_pro_version;
 
 	size = apv <= 87 ? sizeof(struct p_rs_param)
@@ -813,13 +813,13 @@ int drbd_send_sync_param(struct drbd_conf *mdev)
 		if (apv >= 89)
 			strcpy(p->csums_alg, mdev->tconn->net_conf->csums_alg);
 
-		rv = !_drbd_send_cmd(mdev, sock, cmd, &p->head, size, 0);
+		err = _drbd_send_cmd(mdev, sock, cmd, &p->head, size, 0);
 	} else
-		rv = 0; /* not ok */
+		err = -EIO;
 
 	mutex_unlock(&mdev->tconn->data.mutex);
 
-	return rv;
+	return err;
 }
 
 int drbd_send_protocol(struct drbd_tconn *tconn)

drivers/block/drbd/drbd_receiver.c

@@ -763,7 +763,7 @@ int drbd_connected(int vnr, void *p, void *data)
 		&mdev->tconn->cstate_mutex :
 		&mdev->own_state_mutex;
 
-	ok &= drbd_send_sync_param(mdev);
+	ok &= !drbd_send_sync_param(mdev);
 	ok &= drbd_send_sizes(mdev, 0, 0);
 	ok &= drbd_send_uuids(mdev);
 	ok &= drbd_send_state(mdev);