net/mlx5e: fix error return code in mlx5e_alloc_rq()

Fix to return error code -ENOMEM from the kvzalloc_node() error handling
case instead of 0, as done elsewhere in this function.

Fixes: 069d11465a80 ("net/mlx5e: RX, Enhance legacy Receive Queue memory scheme")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

@@ -566,8 +566,10 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c,
 			kvzalloc_node((wq_sz << rq->wqe.info.log_num_frags) *
 				      sizeof(*rq->wqe.frags),
 				      GFP_KERNEL, cpu_to_node(c->cpu));
-		if (!rq->wqe.frags)
+		if (!rq->wqe.frags) {
+			err = -ENOMEM;
 			goto err_free;
+		}
 
 		err = mlx5e_init_di_list(rq, params, wq_sz, c->cpu);
 		if (err)