[PATCH] sk98lin: basic suspend/resume support fixes

An early version of the sk98lin patch was merged via Len's tree.  But there
were subsequent updates as a result of review from Jeff.  THis fixes things
up.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/net/sk98lin/skge.c b/drivers/net/sk98lin/skge.c
index 074521a..49bd8c7 100644 (file)
--- a/drivers/net/sk98lin/skge.c
+++ b/drivers/net/sk98lin/skge.c
@@ -5141,17 +5141,18 @@ static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
        SK_AC *pAC = pNet->pAC;
        struct net_device *otherdev = pAC->dev[1];
 
-       if (pNet->Up) {
-               pAC->WasIfUp[0] = SK_TRUE;
+       if (netif_running(dev)) {
+               netif_carrier_off(dev);
                DoPrintInterfaceChange = SK_FALSE;
                SkDrvDeInitAdapter(pAC, 0);  /* performs SkGeClose */
+               netif_device_detach(dev);
        }
        if (otherdev != dev) {
-               pNet = netdev_priv(otherdev);
-               if (pNet->Up) {
-                       pAC->WasIfUp[1] = SK_TRUE;
+               if (netif_running(otherdev)) {
+                       netif_carrier_off(otherdev);
                        DoPrintInterfaceChange = SK_FALSE;
                        SkDrvDeInitAdapter(pAC, 1);  /* performs SkGeClose */
+                       netif_device_detach(otherdev);
                }
        }
 
@@ -5171,23 +5172,36 @@ static int skge_resume(struct pci_dev *pdev)
        struct net_device *dev = pci_get_drvdata(pdev);
        DEV_NET *pNet = netdev_priv(dev);
        SK_AC *pAC = pNet->pAC;
+       struct net_device *otherdev = pAC->dev[1];
+       int ret;
 
        pci_set_power_state(pdev, PCI_D0);
        pci_restore_state(pdev);
        pci_enable_device(pdev);
        pci_set_master(pdev);
        if (pAC->GIni.GIMacsFound == 2)
-               request_irq(dev->irq, SkGeIsr, SA_SHIRQ, pAC->Name, dev);
+               ret = request_irq(dev->irq, SkGeIsr, SA_SHIRQ, pAC->Name, dev);
        else
-               request_irq(dev->irq, SkGeIsrOnePort, SA_SHIRQ, pAC->Name, dev);
+               ret = request_irq(dev->irq, SkGeIsrOnePort, SA_SHIRQ, pAC->Name, dev);
+       if (ret) {
+               printk(KERN_WARNING "sk98lin: unable to acquire IRQ %d\n", dev->irq);
+               pAC->AllocFlag &= ~SK_ALLOC_IRQ;
+               dev->irq = 0;
+               pci_disable_device(pdev);
+               return -EBUSY;
+       }
 
-        if (pAC->WasIfUp[0] == SK_TRUE) {
+       netif_device_attach(dev);
+       if (netif_running(dev)) {
                DoPrintInterfaceChange = SK_FALSE;
                SkDrvInitAdapter(pAC, 0);    /* first device  */
-        }
-       if (pAC->dev[1] != dev && pAC->WasIfUp[1] == SK_TRUE) {
-               DoPrintInterfaceChange = SK_FALSE;
-               SkDrvInitAdapter(pAC, 1);    /* first device  */
+       }
+       if (otherdev != dev) {
+               netif_device_attach(otherdev);
+               if (netif_running(otherdev)) {
+                       DoPrintInterfaceChange = SK_FALSE;
+                       SkDrvInitAdapter(pAC, 1);    /* second device  */
+               }
        }
 
        return 0;