mwifiex: add PCIe shutdown handler to avoid system hang on reboot

If reboot command is issued when device is in connected state,
system hangs while booting. This issue is fixed by doing cleanup
in shutdown handler.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c
index 4a57eb45f9a85361206fa244874a1c908d2548a0..dce6486826948407039e4740752beacfd94a2ca2 100644 (file)
--- a/drivers/net/wireless/mwifiex/pcie.c
+++ b/drivers/net/wireless/mwifiex/pcie.c
@@ -235,6 +235,14 @@ static void mwifiex_pcie_remove(struct pci_dev *pdev)
        kfree(card);
 }
 
+static void mwifiex_pcie_shutdown(struct pci_dev *pdev)
+{
+       user_rmmod = 1;
+       mwifiex_pcie_remove(pdev);
+
+       return;
+}
+
 static DEFINE_PCI_DEVICE_TABLE(mwifiex_ids) = {
        {
                PCIE_VENDOR_ID_MARVELL, PCIE_DEVICE_ID_MARVELL_88W8766P,
@@ -268,6 +276,7 @@ static struct pci_driver __refdata mwifiex_pcie = {
                .pm = &mwifiex_pcie_pm_ops,
        },
 #endif
+       .shutdown = mwifiex_pcie_shutdown,
 };
 
 /*