usb: fix integer as NULL pointer warnings found by sparse

drivers/usb/host/ohci-sm501.c:93:24: warning: Using plain integer as NULL pointer
drivers/usb/gadget/amd5536udc.c:3254:9: warning: Using plain integer as NULL pointer
drivers/usb/gadget/amd5536udc.c:3267:9: warning: Using plain integer as NULL pointer
drivers/usb/gadget/amd5536udc.c:3277:9: warning: Using plain integer as NULL pointer
drivers/usb/gadget/amd5536udc.c:3285:9: warning: Using plain integer as NULL pointer
drivers/usb/gadget/amd5536udc.c:3293:9: warning: Using plain integer as NULL pointer

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 6 insertions, 6 deletions

diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c
index ce337cb5d137..f261d2a9a5f0 100644
--- a/drivers/usb/gadget/amd5536udc.c
+++ b/drivers/usb/gadget/amd5536udc.c
@@ -3251,7 +3251,7 @@ static int udc_pci_probe(
         /* pci setup */
         if (pci_enable_device(pdev) < 0) {
                 kfree(dev);
-                dev = 0;
+                dev = NULL;
                 retval = -ENODEV;
                 goto finished;
         }
@@ -3264,7 +3264,7 @@ static int udc_pci_probe(
         if (!request_mem_region(resource, len, name)) {
                 dev_dbg(&pdev->dev, "pci device used already\n");
                 kfree(dev);
-                dev = 0;
+                dev = NULL;
                 retval = -EBUSY;
                 goto finished;
         }
@@ -3274,7 +3274,7 @@ static int udc_pci_probe(
         if (dev->virt_addr == NULL) {
                 dev_dbg(&pdev->dev, "start address cannot be mapped\n");
                 kfree(dev);
-                dev = 0;
+                dev = NULL;
                 retval = -EFAULT;
                 goto finished;
         }
@@ -3282,7 +3282,7 @@ static int udc_pci_probe(
         if (!pdev->irq) {
                 dev_err(&dev->pdev->dev, "irq not set\n");
                 kfree(dev);
-                dev = 0;
+                dev = NULL;
                 retval = -ENODEV;
                 goto finished;
         }
@@ -3290,7 +3290,7 @@ static int udc_pci_probe(
         if (request_irq(pdev->irq, udc_irq, IRQF_SHARED, name, dev) != 0) {
                 dev_dbg(&dev->pdev->dev, "request_irq(%d) fail\n", pdev->irq);
                 kfree(dev);
-                dev = 0;
+                dev = NULL;
                 retval = -EBUSY;
                 goto finished;
         }
diff --git a/drivers/usb/host/ohci-sm501.c b/drivers/usb/host/ohci-sm501.c
index 77204f001b9a..e899a77dfb83 100644
--- a/drivers/usb/host/ohci-sm501.c
+++ b/drivers/usb/host/ohci-sm501.c
@@ -90,7 +90,7 @@ static int ohci_hcd_sm501_drv_probe(struct platform_device *pdev)
         struct device *dev = &pdev->dev;
         struct resource *res, *mem;
         int retval, irq;
-        struct usb_hcd *hcd = 0;
+        struct usb_hcd *hcd = NULL;
 
         irq = retval = platform_get_irq(pdev, 0);
         if (retval < 0)