ipw2100: fix rebooting hang with driver loaded

commit 52ce3e9a7db754b78cf2cbabc87013f921b25b28 upstream.

Add PCI .shutdown method so that we can disable the device during
shutdown or reboot. Without this, the reboot doesn't work well on
some platforms.

This fixes http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2124

Tested-by: pablo <pablolm2005@gmail.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/net/wireless/ipw2x00/ipw2100.c b/drivers/net/wireless/ipw2x00/ipw2100.c
index 6e2fc0cb6f8a83386252923c9c5cc0d57c190d4b..43102bff8dee4965fe0472213c644d15ce19e29b 100644 (file)
--- a/drivers/net/wireless/ipw2x00/ipw2100.c
+++ b/drivers/net/wireless/ipw2x00/ipw2100.c
@@ -6487,6 +6487,16 @@ static int ipw2100_resume(struct pci_dev *pci_dev)
 }
 #endif
 
+static void ipw2100_shutdown(struct pci_dev *pci_dev)
+{
+       struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
+
+       /* Take down the device; powers it off, etc. */
+       ipw2100_down(priv);
+
+       pci_disable_device(pci_dev);
+}
+
 #define IPW2100_DEV_ID(x) { PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, x }
 
 static struct pci_device_id ipw2100_pci_id_table[] __devinitdata = {
@@ -6550,6 +6560,7 @@ static struct pci_driver ipw2100_pci_driver = {
        .suspend = ipw2100_suspend,
        .resume = ipw2100_resume,
 #endif
+       .shutdown = ipw2100_shutdown,
 };
 
 /**