staging: frontier: switch to strict_strtoul in tranzport.c

This is a patch to tranzport.c that changes a use of simple_strtoul to
strict_strtoul at the suggestion of checkpatch.pl

Signed-off-by: Eli Lindsey <eli@siliconsprawl.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/frontier/tranzport.c

@@ -198,7 +198,9 @@ static void usb_tranzport_abort_transfers(struct usb_tranzport *dev)
   {									\
     struct usb_interface *intf = to_usb_interface(dev);			\
     struct usb_tranzport *t = usb_get_intfdata(intf);			\
-    int temp = simple_strtoul(buf, NULL, 10);				\
+    unsigned long temp;							\
+    if (strict_strtoul(buf, 10, &temp))					\
+	return -EINVAL;							\
     t->value = temp;							\
     return count;							\
   }									\