[PATCH] wireless: clean-up some "check return code" warnings

Clean-up some warnings from missing return code checks, mostly from
calling pci_enable_device during a PCI resume.

Signed-off-by: John W. Linville <linville@tuxdriver.com>

5 files changed, 43 insertions, 8 deletions

diff --git a/drivers/net/wireless/hostap/hostap_pci.c b/drivers/net/wireless/hostap/hostap_pci.c
index c2fa011be291..d1de9766c831 100644
--- a/drivers/net/wireless/hostap/hostap_pci.c
+++ b/drivers/net/wireless/hostap/hostap_pci.c
@@ -425,8 +425,14 @@ static int prism2_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 static int prism2_pci_resume(struct pci_dev *pdev)
 {
         struct net_device *dev = pci_get_drvdata(pdev);
+        int err;
 
-        pci_enable_device(pdev);
+        err = pci_enable_device(pdev);
+        if (err) {
+                printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
+                       dev->name);
+                return err;
+        }
         pci_restore_state(pdev);
         prism2_hw_config(dev, 0);
         if (netif_running(dev)) {
diff --git a/drivers/net/wireless/ipw2100.c b/drivers/net/wireless/ipw2100.c
index 5bf4d4119c3d..3bc6be9d20f8 100644
--- a/drivers/net/wireless/ipw2100.c
+++ b/drivers/net/wireless/ipw2100.c
@@ -6423,6 +6423,7 @@ static int ipw2100_resume(struct pci_dev *pci_dev)
 {
         struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
         struct net_device *dev = priv->net_dev;
+        int err;
         u32 val;
 
         if (IPW2100_PM_DISABLED)
@@ -6433,7 +6434,12 @@ static int ipw2100_resume(struct pci_dev *pci_dev)
         IPW_DEBUG_INFO("%s: Coming out of suspend...\n", dev->name);
 
         pci_set_power_state(pci_dev, PCI_D0);
-        pci_enable_device(pci_dev);
+        err = pci_enable_device(pci_dev);
+        if (err) {
+                printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
+                       dev->name);
+                return err;
+        }
         pci_restore_state(pci_dev);
 
         /*
diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c
index 72120d5c2f7b..c692d01a76ca 100644
--- a/drivers/net/wireless/ipw2200.c
+++ b/drivers/net/wireless/ipw2200.c
@@ -11727,12 +11727,18 @@ static int ipw_pci_resume(struct pci_dev *pdev)
 {
         struct ipw_priv *priv = pci_get_drvdata(pdev);
         struct net_device *dev = priv->net_dev;
+        int err;
         u32 val;
 
         printk(KERN_INFO "%s: Coming out of suspend...\n", dev->name);
 
         pci_set_power_state(pdev, PCI_D0);
-        pci_enable_device(pdev);
+        err = pci_enable_device(pdev);
+        if (err) {
+                printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
+                       dev->name);
+                return err;
+        }
         pci_restore_state(pdev);
 
         /*
diff --git a/drivers/net/wireless/orinoco_pci.h b/drivers/net/wireless/orinoco_pci.h
index be1abea4b64f..f4e5e06760c1 100644
--- a/drivers/net/wireless/orinoco_pci.h
+++ b/drivers/net/wireless/orinoco_pci.h
@@ -60,7 +60,12 @@ static int orinoco_pci_resume(struct pci_dev *pdev)
         int err;
 
         pci_set_power_state(pdev, 0);
-        pci_enable_device(pdev);
+        err = pci_enable_device(pdev);
+        if (err) {
+                printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
+                       dev->name);
+                return err;
+        }
         pci_restore_state(pdev);
 
         err = request_irq(pdev->irq, orinoco_interrupt, IRQF_SHARED,
diff --git a/drivers/net/wireless/prism54/islpci_hotplug.c b/drivers/net/wireless/prism54/islpci_hotplug.c
index f6354b1cbc28..e0bca3abdf68 100644
--- a/drivers/net/wireless/prism54/islpci_hotplug.c
+++ b/drivers/net/wireless/prism54/islpci_hotplug.c
@@ -170,14 +170,15 @@ prism54_probe(struct pci_dev *pdev, const struct pci_device_id *id)
         pci_set_master(pdev);
 
         /* enable MWI */
-        pci_set_mwi(pdev);
+        if (pci_set_mwi(pdev))
+                goto do_pci_release_regions;
 
         /* setup the network device interface and its structure */
         if (!(ndev = islpci_setup(pdev))) {
                 /* error configuring the driver as a network device */
                 printk(KERN_ERR "%s: could not configure network device\n",
                        DRV_NAME);
-                goto do_pci_release_regions;
+                goto do_pci_clear_mwi;
         }
 
         priv = netdev_priv(ndev);
@@ -207,6 +208,8 @@ prism54_probe(struct pci_dev *pdev, const struct pci_device_id *id)
         pci_set_drvdata(pdev, NULL);
         free_netdev(ndev);
         priv = NULL;
+      do_pci_clear_mwi:
+        pci_clear_mwi(pdev);
       do_pci_release_regions:
         pci_release_regions(pdev);
       do_pci_disable_device:
@@ -254,6 +257,8 @@ prism54_remove(struct pci_dev *pdev)
         free_netdev(ndev);
         priv = NULL;
 
+        pci_clear_mwi(pdev);
+
         pci_release_regions(pdev);
 
         pci_disable_device(pdev);
@@ -287,12 +292,19 @@ prism54_resume(struct pci_dev *pdev)
 {
         struct net_device *ndev = pci_get_drvdata(pdev);
         islpci_private *priv = ndev ? netdev_priv(ndev) : NULL;
-        BUG_ON(!priv);
+        int err;
 
-        pci_enable_device(pdev);
+        BUG_ON(!priv);
 
         printk(KERN_NOTICE "%s: got resume request\n", ndev->name);
 
+        err = pci_enable_device(pdev);
+        if (err) {
+                printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
+                       ndev->name);
+                return err;
+        }
+
         pci_restore_state(pdev);
 
         /* alright let's go into the PREBOOT state */