net: qlogic: Fix memory leak in ql_alloc_large_buffers

[ Upstream commit 1acb8f2a7a9f10543868ddd737e37424d5c36cf4 ]

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@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c
index 10b075b..783ee6a 100644 (file)
--- a/drivers/net/ethernet/qlogic/qla3xxx.c
+++ b/drivers/net/ethernet/qlogic/qla3xxx.c
@@ -2788,6 +2788,7 @@ static int ql_alloc_large_buffers(struct ql3_adapter *qdev)
                                netdev_err(qdev->ndev,
                                           "PCI mapping failed with error: %d\n",
                                           err);
+                               dev_kfree_skb_irq(skb);
                                ql_free_large_buffers(qdev);
                                return -ENOMEM;
                        }