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authorStephen Hemminger <shemminger@linux-foundation.org>2007-05-11 11:21:45 -0700
committerJeff Garzik <jeff@garzik.org>2007-05-11 17:53:36 -0400
commite3b7df17c8344fbcc00e871e03f5f88d58905277 (patch)
treea2b1c8e88277c818c12f2bc725cc298f15daa3a9 /drivers/net/skge.c
parent549a68c3fe2ca320b0764d1289d17af797daa5d1 (diff)
skge: crash on shutdown/suspend
If device is not fails during module startup (like unsupported chip version) then driver would crash dereferencing a null pointer, on shutdown or suspend/resume. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/skge.c')
-rw-r--r--drivers/net/skge.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index e0489578945..77669294656 100644
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -3802,6 +3802,9 @@ static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
struct skge_hw *hw = pci_get_drvdata(pdev);
int i, err, wol = 0;
+ if (!hw)
+ return 0;
+
err = pci_save_state(pdev);
if (err)
return err;
@@ -3830,6 +3833,9 @@ static int skge_resume(struct pci_dev *pdev)
struct skge_hw *hw = pci_get_drvdata(pdev);
int i, err;
+ if (!hw)
+ return 0;
+
err = pci_set_power_state(pdev, PCI_D0);
if (err)
goto out;
@@ -3868,6 +3874,9 @@ static void skge_shutdown(struct pci_dev *pdev)
struct skge_hw *hw = pci_get_drvdata(pdev);
int i, wol = 0;
+ if (!hw)
+ return;
+
for (i = 0; i < hw->ports; i++) {
struct net_device *dev = hw->dev[i];
struct skge_port *skge = netdev_priv(dev);