aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorTony Zelenoff <antonz@parallels.com>2012-04-11 06:15:03 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-27 10:17:04 -0700
commit60cf9a4017ed9b3bcd1c28e7a443f4dfe239b8df (patch)
tree8a56d002feac268b3ead1c48b514b05b55282e35
parent8607ccff19e16b51feab33664425e5984f751074 (diff)
atl1: fix kernel panic in case of DMA errors
[ Upstream commit 03662e41c7cff64a776bfb1b3816de4be43de881 ] Problem: There was two separate work_struct structures which share one handler. Unfortunately getting atl1_adapter structure from work_struct in case of DMA error was done from incorrect offset which cause kernel panics. Solution: The useless work_struct for DMA error removed and handler name changed to more generic one. Signed-off-by: Tony Zelenoff <antonz@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/net/ethernet/atheros/atlx/atl1.c12
-rw-r--r--drivers/net/ethernet/atheros/atlx/atl1.h3
-rw-r--r--drivers/net/ethernet/atheros/atlx/atlx.c2
3 files changed, 7 insertions, 10 deletions
diff --git a/drivers/net/ethernet/atheros/atlx/atl1.c b/drivers/net/ethernet/atheros/atlx/atl1.c
index 9bd20497664..3c4daca8012 100644
--- a/drivers/net/ethernet/atheros/atlx/atl1.c
+++ b/drivers/net/ethernet/atheros/atlx/atl1.c
@@ -2473,7 +2473,7 @@ static irqreturn_t atl1_intr(int irq, void *data)
"pcie phy link down %x\n", status);
if (netif_running(adapter->netdev)) { /* reset MAC */
iowrite32(0, adapter->hw.hw_addr + REG_IMR);
- schedule_work(&adapter->pcie_dma_to_rst_task);
+ schedule_work(&adapter->reset_dev_task);
return IRQ_HANDLED;
}
}
@@ -2485,7 +2485,7 @@ static irqreturn_t atl1_intr(int irq, void *data)
"pcie DMA r/w error (status = 0x%x)\n",
status);
iowrite32(0, adapter->hw.hw_addr + REG_IMR);
- schedule_work(&adapter->pcie_dma_to_rst_task);
+ schedule_work(&adapter->reset_dev_task);
return IRQ_HANDLED;
}
@@ -2630,10 +2630,10 @@ static void atl1_down(struct atl1_adapter *adapter)
atl1_clean_rx_ring(adapter);
}
-static void atl1_tx_timeout_task(struct work_struct *work)
+static void atl1_reset_dev_task(struct work_struct *work)
{
struct atl1_adapter *adapter =
- container_of(work, struct atl1_adapter, tx_timeout_task);
+ container_of(work, struct atl1_adapter, reset_dev_task);
struct net_device *netdev = adapter->netdev;
netif_device_detach(netdev);
@@ -3032,12 +3032,10 @@ static int __devinit atl1_probe(struct pci_dev *pdev,
(unsigned long)adapter);
adapter->phy_timer_pending = false;
- INIT_WORK(&adapter->tx_timeout_task, atl1_tx_timeout_task);
+ INIT_WORK(&adapter->reset_dev_task, atl1_reset_dev_task);
INIT_WORK(&adapter->link_chg_task, atlx_link_chg_task);
- INIT_WORK(&adapter->pcie_dma_to_rst_task, atl1_tx_timeout_task);
-
err = register_netdev(netdev);
if (err)
goto err_common;
diff --git a/drivers/net/ethernet/atheros/atlx/atl1.h b/drivers/net/ethernet/atheros/atlx/atl1.h
index 109d6da8be9..e04bf4d71e4 100644
--- a/drivers/net/ethernet/atheros/atlx/atl1.h
+++ b/drivers/net/ethernet/atheros/atlx/atl1.h
@@ -758,9 +758,8 @@ struct atl1_adapter {
u16 link_speed;
u16 link_duplex;
spinlock_t lock;
- struct work_struct tx_timeout_task;
+ struct work_struct reset_dev_task;
struct work_struct link_chg_task;
- struct work_struct pcie_dma_to_rst_task;
struct timer_list phy_config_timer;
bool phy_timer_pending;
diff --git a/drivers/net/ethernet/atheros/atlx/atlx.c b/drivers/net/ethernet/atheros/atlx/atlx.c
index 8ff7411094d..9796d0517db 100644
--- a/drivers/net/ethernet/atheros/atlx/atlx.c
+++ b/drivers/net/ethernet/atheros/atlx/atlx.c
@@ -193,7 +193,7 @@ static void atlx_tx_timeout(struct net_device *netdev)
{
struct atlx_adapter *adapter = netdev_priv(netdev);
/* Do the reset outside of interrupt context */
- schedule_work(&adapter->tx_timeout_task);
+ schedule_work(&adapter->reset_dev_task);
}
/*