[PATCH] USB: kfree cleanup for drivers/usb/* - no need to check for NULL

Get rid of a bunch of redundant NULL pointer checks in drivers/usb/*,
there's no need to check a pointer for NULL before calling kfree() on it.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>


Index: gregkh-2.6/drivers/usb/class/audio.c
===================================================================

drivers/usb/net/zd1201.c

@@ -106,8 +106,7 @@ int zd1201_fw_upload(struct usb_device *dev, int apfw)
 
 	err = 0;
 exit:
- 	if (buf)
-		kfree(buf);
+	kfree(buf);
 	release_firmware(fw_entry);
 	return err;
 }