bna: fix memory leak during RX path cleanup

The memory leak was caused by unintentional assignment of the Rx path
destroy callback function pointer to NULL just after correct
initialization.

Signed-off-by: Debashis Dutt <ddutt@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bna/bnad.c b/drivers/net/bna/bnad.c
index 9f356d5..8e6ceab 100644
--- a/drivers/net/bna/bnad.c
+++ b/drivers/net/bna/bnad.c
@@ -1837,7 +1837,6 @@
 	/* Initialize the Rx event handlers */
 	rx_cbfn.rcb_setup_cbfn = bnad_cb_rcb_setup;
 	rx_cbfn.rcb_destroy_cbfn = bnad_cb_rcb_destroy;
-	rx_cbfn.rcb_destroy_cbfn = NULL;
 	rx_cbfn.ccb_setup_cbfn = bnad_cb_ccb_setup;
 	rx_cbfn.ccb_destroy_cbfn = bnad_cb_ccb_destroy;
 	rx_cbfn.rx_cleanup_cbfn = bnad_cb_rx_cleanup;