[PATCH] mlx5: vdpa: fix possible uninitialized var

[Jason Wang]

Upstream: posted

When compiling with -Werror=maybe-uninitialized, gcc may complains the
possible uninitialized umem. Fix that.

Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>
---
 drivers/vdpa/mlx5/net/mlx5_vnet.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index f1d54814db97..a6ad83d8d8e2 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -706,6 +706,9 @@ static void umem_destroy(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtqueue
 	case 3:
 		umem = &mvq->umem3;
 		break;
+	default:
+		WARN(1, "unsupported umem num %d\n", num);
+		return;
 	}
 
 	MLX5_SET(destroy_umem_in, in, opcode, MLX5_CMD_OP_DESTROY_UMEM);
-- 
2.25.1