Subject: [PATCH 1/5] fixing errors handling during pci_driver resume stage [net]

From: Dmitriy Monakhov <[email-masked]>
Date: Tue, 09 Jan 2007 12:01:14 +0300

network pci drivers have to return correct error code during resume stage in
case of errors.
Signed-off-by: Dmitriy Monakhov <[email-masked]>
-----
diff --git a/Makefile b/Makefile
diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c
index 80bdcf8..ed06e48 100644
--- a/drivers/net/3c59x.c
+++ b/drivers/net/3c59x.c
@@ -823,11 +823,18 @@ static int vortex_resume(struct pci_dev
 {
 	struct net_device *dev = pci_get_drvdata(pdev);
 	struct vortex_private *vp = netdev_priv(dev);
+	int err;
 
 	if (dev && vp) {
 		pci_set_power_state(pdev, PCI_D0);
 		pci_restore_state(pdev);
-		pci_enable_device(pdev);
+		err = pci_enable_device(pdev);
+		if (err) {
+			dev_err(&pdev->dev, "Cannot enable PCI device, "
+				" aborting.\n");
+			return err;
+		}
+
 		pci_set_master(pdev);
 		if (request_irq(dev->irq, vp->full_bus_master_rx ?
 				&boomerang_interrupt : &vortex_interrupt, IRQF_SHARED, dev->name, dev)) {
diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index 5eb2ec6..a88b346 100644
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -2315,16 +2315,25 @@ static int b44_resume(struct pci_dev *pd
 {
 	struct net_device *dev = pci_get_drvdata(pdev);
 	struct b44 *bp = netdev_priv(dev);
+	int err;
 
 	pci_restore_state(pdev);
-	pci_enable_device(pdev);
+	err = pci_enable_device(pdev);
+	if (err) {
+		dev_err(&pdev->dev, "Cannot enable PCI device, aborting.\n");
+		return err;
+	}
+
 	pci_set_master(pdev);
 
 	if (!netif_running(dev))
 		return 0;
 
-	if (request_irq(dev->irq, b44_interrupt, IRQF_SHARED, dev->name, dev))
+	if (request_irq(dev->irq, b44_interrupt, IRQF_SHARED, dev->name, dev)) {
 		printk(KERN_ERR PFX "%s: request_irq failed\n", dev->name);
+		pci_disable_device(pdev);
+		return -EBUSY;
+	}
 
 	spin_lock_irq(&bp->lock);
 
diff --git a/drivers/net/eepro100.c b/drivers/net/eepro100.c
index e28bb1e..698f974 100644
--- a/drivers/net/eepro100.c
+++ b/drivers/net/eepro100.c
@@ -2292,10 +2292,16 @@ static int eepro100_resume(struct pci_de
 	struct net_device *dev = pci_get_drvdata (pdev);
 	struct speedo_private *sp = netdev_priv(dev);
 	void __iomem *ioaddr = sp->regs;
+	int err;
 
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
-	pci_enable_device(pdev);
+	err = pci_enable_device(pdev);
+	if (err) {
+		dev_err(&pdev->dev, "Cannot enable PCI device, aborting.\n");
+		return err;
+	}
+
 	pci_set_master(pdev);
 
 	if (!netif_running(dev))
diff --git a/drivers/net/natsemi.c b/drivers/net/natsemi.c
index ffa0afd..57a8f36 100644
--- a/drivers/net/natsemi.c
+++ b/drivers/net/natsemi.c
@@ -3195,13 +3195,20 @@ static int natsemi_resume (struct pci_de
 {
 	struct net_device *dev = pci_get_drvdata (pdev);
 	struct netdev_private *np = netdev_priv(dev);
+	int err;
 
 	rtnl_lock();
 	if (netif_device_present(dev))
 		goto out;
 	if (netif_running(dev)) {
 		BUG_ON(!np->hands_off);
-		pci_enable_device(pdev);
+		err = pci_enable_device(pdev);
+		if (err) {
+			dev_err(&pdev->dev, "Cannot enable PCI device, "
+				"aborting.\n");
+			return err;
+		}
+
 	/*	pci_power_on(pdev); */
 
 		natsemi_reset(dev);
diff --git a/drivers/net/ne2k-pci.c b/drivers/net/ne2k-pci.c
index 589785d..e8aea03 100644
--- a/drivers/net/ne2k-pci.c
+++ b/drivers/net/ne2k-pci.c
@@ -670,10 +670,15 @@ static int ne2k_pci_suspend (struct pci_
 static int ne2k_pci_resume (struct pci_dev *pdev)
 {
 	struct net_device *dev = pci_get_drvdata (pdev);
+	int err;
 
 	pci_set_power_state(pdev, 0);
 	pci_restore_state(pdev);
-	pci_enable_device(pdev);
+	err = pci_enable_device(pdev);
+	if (err) {
+		dev_err(&pdev->dev, "Cannot enable PCI device, aborting.\n");
+		return err;
+	}
 	NS8390_init(dev, 1);
 	netif_device_attach(dev);
 
diff --git a/drivers/net/sk98lin/skge.c b/drivers/net/sk98lin/skge.c
index 92d11b9..c9de11f 100644
--- a/drivers/net/sk98lin/skge.c
+++ b/drivers/net/sk98lin/skge.c
@@ -5125,7 +5125,12 @@ static int skge_resume(struct pci_dev *p
 
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
-	pci_enable_device(pdev);
+	ret = pci_enable_device(pdev);
+	if (ret) {
+		dev_err(&pdev->dev, "Cannot enable PCI device, aborting.\n");
+ 		return ret;
+	}
+
 	pci_set_master(pdev);
 	if (pAC->GIni.GIMacsFound == 2)
 		ret = request_irq(dev->irq, SkGeIsr, IRQF_SHARED, "sk98lin", dev);
diff --git a/drivers/net/tulip/xircom_tulip_cb.c b/drivers/net/tulip/xircom_tulip_cb.c
index a998c5d..91fb067 100644
--- a/drivers/net/tulip/xircom_tulip_cb.c
+++ b/drivers/net/tulip/xircom_tulip_cb.c
@@ -1655,10 +1655,16 @@ static int xircom_resume(struct pci_dev
 {
 	struct net_device *dev = pci_get_drvdata(pdev);
 	struct xircom_private *tp = netdev_priv(dev);
+	int err;
 	printk(KERN_INFO "xircom_resume(%s)\n", dev->name);
 
 	pci_set_power_state(pdev,0);
-	pci_enable_device(pdev);
+	err = pci_enable_device(pdev);
+	if (err) {
+		dev_err(&pdev->dev, "Cannot enable PCI device, aborting.\n");
+		return err;
+	}
+
 	pci_restore_state(pdev);
 
 	/* Bring the chip out of sleep mode.