RDMA/mlx5: Don't leak UARs in case of free fails

The failure in releasing one UAR doesn't mean that we can't continue to
release rest of system pages, so don't return too early.

As part of cleanup, there is no need to print warning if mlx5_cmd_free_uar()
fails because such warning will be printed as part of mlx5_cmd_exec().

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

drivers/infiniband/hw/mlx5/main.c

@@ -1559,25 +1559,17 @@ static int allocate_uars(struct mlx5_ib_dev *dev, struct mlx5_ib_ucontext *conte
 	return err;
 }
 
-static int deallocate_uars(struct mlx5_ib_dev *dev, struct mlx5_ib_ucontext *context)
+static void deallocate_uars(struct mlx5_ib_dev *dev,
+			    struct mlx5_ib_ucontext *context)
 {
 	struct mlx5_bfreg_info *bfregi;
-	int err;
 	int i;
 
 	bfregi = &context->bfregi;
-	for (i = 0; i < bfregi->num_sys_pages; i++) {
+	for (i = 0; i < bfregi->num_sys_pages; i++)
 		if (i < bfregi->num_static_sys_pages ||
-		    bfregi->sys_pages[i] != MLX5_IB_INVALID_UAR_INDEX) {
-			err = mlx5_cmd_free_uar(dev->mdev, bfregi->sys_pages[i]);
-			if (err) {
-				mlx5_ib_warn(dev, "failed to free uar %d, err=%d\n", i, err);
-				return err;
-			}
-		}
-	}
-
-	return 0;
+		    bfregi->sys_pages[i] != MLX5_IB_INVALID_UAR_INDEX)
+			mlx5_cmd_free_uar(dev->mdev, bfregi->sys_pages[i]);
 }
 
 static int mlx5_ib_alloc_transport_domain(struct mlx5_ib_dev *dev, u32 *tdn)