[patch] net/mlx4_en: dereferencing freed memory

We dereferenced "mclist" after the kfree().

Signed-off-by: Dan Carpenter <dan.carpenter <at> oracle.com>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 94375a8..4ce5ca8 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
 <at>  <at>  -503,9 +503,7  <at>  <at>  static void mlx4_en_do_set_multicast(struct work_struct *work)
 				/* remove from list */
 				list_del(&mclist->list);
 				kfree(mclist);
-			}
-
-			if (mclist->action == MCLIST_ADD) {
+			} else if (mclist->action == MCLIST_ADD) {
 				/* attach the address */
 				memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
 				/* needed for B0 steering support */