[PATCH] libata: cosmetic changes in ata_bus_softreset()

ata_bus_softreset() should return AC_ERR_* on failure not arbitrary
positive number.  While at it, reformat comment above it.
Signed-off-by: NTejun Heo <htejun@gmail.com>
Acked-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

drivers/scsi/libata-core.c

@@ -2008,13 +2008,12 @@ static unsigned int ata_bus_softreset(struct ata_port *ap,
 	 */
 	msleep(150);
 
-
 	/* Before we perform post reset processing we want to see if
-	   the bus shows 0xFF because the odd clown forgets the D7 pulldown
-	   resistor */
-
+	 * the bus shows 0xFF because the odd clown forgets the D7
+	 * pulldown resistor.
+	 */
 	if (ata_check_status(ap) == 0xFF)
-		return 1;	/* Positive is failure for some reason */
+		return AC_ERR_OTHER;
 
 	ata_bus_post_reset(ap, devmask);