mlx4_en: Fix error handling while activating RX rings

In case of failure of either srq creation or page allocation,
the cleanup code handled the failed ring as well, and tried
to destroy resources that where not allocated.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/mlx4/en_rx.c b/drivers/net/mlx4/en_rx.c
index 7e40741..8673008 100644
--- a/drivers/net/mlx4/en_rx.c
+++ b/drivers/net/mlx4/en_rx.c
@@ -436,8 +436,9 @@
 		/* Initialize page allocators */
 		err = mlx4_en_init_allocator(priv, ring);
 		if (err) {
-			 mlx4_err(mdev, "Failed initializing ring allocator\n");
-			 goto err_allocator;
+			mlx4_err(mdev, "Failed initializing ring allocator\n");
+			ring_ind--;
+			goto err_allocator;
 		}
 
 		/* Fill Rx buffers */
@@ -467,6 +468,7 @@
 				     ring->wqres.db.dma, &ring->srq);
 		if (err){
 			mlx4_err(mdev, "Failed to allocate srq\n");
+			ring_ind--;
 			goto err_srq;
 		}
 		ring->srq.event = mlx4_en_srq_event;