[PATCH] USB: remove redundant checks for NULL when it can never happen.

drivers/usb/core/usb.c

@@ -110,12 +110,6 @@ int usb_device_remove(struct device *dev)
 	intf = list_entry(dev,struct usb_interface,dev);
 	driver = to_usb_driver(dev->driver);
 
-	if (!driver) {
-		dev_err(dev, "%s does not have a valid driver to work with!",
-		    __FUNCTION__);
-		return -ENODEV;
-	}
-
 	down(&driver->serialize);
 
 	if (intf->driver && intf->driver->disconnect)
@@ -480,9 +474,6 @@ struct usb_interface *usb_find_interface(struct usb_driver *drv, kdev_t kdev)
 			continue;
 
 		intf = to_usb_interface(dev);
-		if (!intf)
-			continue;
-
 		if (kdev_same(intf->kdev,kdev)) {
 			return intf;
 		}
@@ -548,12 +539,7 @@ static int usb_hotplug (struct device *dev, char **envp, int num_envp,
 		return 0;
 
 	intf = to_usb_interface(dev);
-	if (!intf)
-		return -ENODEV;
-
 	usb_dev = interface_to_usbdev (intf);
-	if (!usb_dev)
-		return -ENODEV;
 	
 	if (usb_dev->devnum < 0) {
 		dbg ("device already deleted ??");
@@ -730,8 +716,6 @@ static void usb_release_dev(struct device *dev)
 	struct usb_device *udev;
 
 	udev = to_usb_device(dev);
-	if (!udev)
-		return;
 
 	if (udev->bus && udev->bus->op && udev->bus->op->deallocate)
 		udev->bus->op->deallocate(udev);