diff options
| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2011-06-24 11:34:34 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-06-27 15:09:42 -0400 |
| commit | 428bc8c3960d2b18cb9f0d90cfe197ec9a822a54 (patch) | |
| tree | d51512b45db9f5675a2f6b89a9a428781bece707 | |
| parent | 1d616b14cf3266684af46db614b7de03c7a8a538 (diff) | |
iwlagn: fix rmmod crash
priv->bus.bus_specific pointer is used after priv structures was freed,
in iwl_pci_remove(), what make ugly rmmod crash. This bug was introduced
by current pci changes.
On the way remove fake check, if prober error code is returned from
.probe() function, .remove() will never be called be null drvdata.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-pci.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-pci.c b/drivers/net/wireless/iwlwifi/iwl-pci.c index 3927c802a5d..d582cc11145 100644 --- a/drivers/net/wireless/iwlwifi/iwl-pci.c +++ b/drivers/net/wireless/iwlwifi/iwl-pci.c @@ -496,14 +496,11 @@ static void iwl_pci_down(void *bus) static void __devexit iwl_pci_remove(struct pci_dev *pdev) { struct iwl_priv *priv = pci_get_drvdata(pdev); - - /* This can happen if probe failed */ - if (unlikely(!priv)) - return; + void *bus_specific = priv->bus.bus_specific; iwl_remove(priv); - iwl_pci_down(IWL_BUS_GET_PCI_BUS(&priv->bus)); + iwl_pci_down(bus_specific); } #ifdef CONFIG_PM |