IB/mlx4: Fix memory leak in __mlx4_ib_modify_qp
IB/mlx4: Fix memory leak in __mlx4_ib_modify_qp

In case handle_eth_ud_smac_index fails, we need to free the allocated resources.

Fixes: 2f5bb473681b ("mlx4: Add ref counting to port MAC table for RoCE")
Signed-off-by: Majd Dibbiny <9ad20b9164463c8ab84b5b8af5ac15dbd914601e@mellanox.com>
Signed-off-by: Or Gerlitz <de1b678a59344538ef9f2ddb34a5f9486544e2f9@mellanox.com>
Signed-off-by: Roland Dreier <0d270388f2f92757a5de0f4bd891d3b392c44c4f@purestorage.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs