qlge: Clear shadow registers before use.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c
index 45ad4cc298bf..75ad4dbb5cb7 100644
--- a/drivers/net/qlge/qlge_main.c
+++ b/drivers/net/qlge/qlge_main.c
@@ -2142,6 +2142,7 @@ static int ql_alloc_shadow_space(struct ql_adapter *qdev)
                         "Allocation of RX shadow space failed.\n");
                 return -ENOMEM;
         }
+        memset(qdev->rx_ring_shadow_reg_area, 0, PAGE_SIZE);
         qdev->tx_ring_shadow_reg_area =
             pci_alloc_consistent(qdev->pdev, PAGE_SIZE,
                                  &qdev->tx_ring_shadow_reg_dma);
@@ -2150,6 +2151,7 @@ static int ql_alloc_shadow_space(struct ql_adapter *qdev)
                         "Allocation of TX shadow space failed.\n");
                 goto err_wqp_sh_area;
         }
+        memset(qdev->tx_ring_shadow_reg_area, 0, PAGE_SIZE);
         return 0;
 
 err_wqp_sh_area: