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authorStephen Hemminger <shemminger@linux-foundation.org>2007-05-15 15:08:27 -0700
committerChris Wright <chrisw@sous-sol.org>2007-05-23 14:32:53 -0700
commitb1b292459c99d06e90b109f04e2dbd184fda9167 (patch)
tree6c1179ecf9ce101a081b64f2545a318fb42e725e
parent71609984a43bab184a8f47eb34b15704cb7c0485 (diff)
[PATCH] sky2: fix oops on shutdown
If the device fails during module startup for some reason like unsupported chip version then the driver would crash dereferencing a null pointer, on shutdown or suspend/resume. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
-rw-r--r--drivers/net/sky2.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 7d380d21354..b6b444b0aff 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -3719,6 +3719,7 @@ err_out_free_regions:
pci_release_regions(pdev);
pci_disable_device(pdev);
err_out:
+ pci_set_drvdata(pdev, NULL);
return err;
}
@@ -3771,6 +3772,9 @@ static int sky2_suspend(struct pci_dev *pdev, pm_message_t state)
struct sky2_hw *hw = pci_get_drvdata(pdev);
int i, wol = 0;
+ if (!hw)
+ return 0;
+
del_timer_sync(&hw->idle_timer);
netif_poll_disable(hw->dev[0]);
@@ -3802,6 +3806,9 @@ static int sky2_resume(struct pci_dev *pdev)
struct sky2_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;
@@ -3848,6 +3855,9 @@ static void sky2_shutdown(struct pci_dev *pdev)
struct sky2_hw *hw = pci_get_drvdata(pdev);
int i, wol = 0;
+ if (!hw)
+ return;
+
del_timer_sync(&hw->idle_timer);
netif_poll_disable(hw->dev[0]);