USB: s3c2410_udc: minor irq handler cleanups

- 'irq' argument is merely used in place of a constant; replace its usage
  with that constant.
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/gadget/s3c2410_udc.c

@@ -893,7 +893,7 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep)
 /*
  *	s3c2410_udc_irq - interrupt handler
  */
-static irqreturn_t s3c2410_udc_irq(int irq, void *_dev)
+static irqreturn_t s3c2410_udc_irq(int dummy, void *_dev)
 {
 	struct s3c2410_udc *dev = _dev;
 	int usb_status;
@@ -1016,7 +1016,7 @@ static irqreturn_t s3c2410_udc_irq(int irq, void *_dev)
 		}
 	}
 
-	dprintk(DEBUG_VERBOSE, "irq: %d s3c2410_udc_done.\n", irq);
+	dprintk(DEBUG_VERBOSE, "irq: %d s3c2410_udc_done.\n", IRQ_USBD);
 
 	/* Restore old index */
 	udc_write(idx, S3C2410_UDC_INDEX_REG);