[PATCH 3.16 01/63] net: qlogic: Fix memory leak in ql_alloc_large_buffers

[Ben Hutchings]

3.16.81-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>

commit 1acb8f2a7a9f10543868ddd737e37424d5c36cf4 upstream.

In ql_alloc_large_buffers, a new skb is allocated via netdev_alloc_skb.
This skb should be released if pci_dma_mapping_error fails.

Fixes: 0f8ab89e825f ("qla3xxx: Check return code from pci_map_single() in ql_release_to_lrg_buf_free_list(), ql_populate_free_queue(), ql_alloc_large_buffers(), and ql3xxx_send()")
Signed-off-by: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 drivers/net/ethernet/qlogic/qla3xxx.c | 1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/ethernet/qlogic/qla3xxx.c
+++ b/drivers/net/ethernet/qlogic/qla3xxx.c
@@ -2789,6 +2789,7 @@ static int ql_alloc_large_buffers(struct
 				netdev_err(qdev->ndev,
 					   "PCI mapping failed with error: %d\n",
 					   err);
+				dev_kfree_skb_irq(skb);
 				ql_free_large_buffers(qdev);
 				return -ENOMEM;
 			}