[src/trunk]: src/sys/arch/sh3/dev fix -Werror=unused-but-set-variable compile...

[msaitoh <msaitoh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/005547994fe6
branches:  trunk
changeset: 330058:005547994fe6
user:      msaitoh <msaitoh%NetBSD.org@localhost>
date:      Thu Jun 19 18:01:18 2014 +0000

description:
fix -Werror=unused-but-set-variable compile error

diffstat:

 sys/arch/sh3/dev/sci.c |  7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diffs (35 lines):

diff -r a212dbad0ed1 -r 005547994fe6 sys/arch/sh3/dev/sci.c
--- a/sys/arch/sh3/dev/sci.c    Thu Jun 19 16:54:40 2014 +0000
+++ b/sys/arch/sh3/dev/sci.c    Thu Jun 19 18:01:18 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: sci.c,v 1.58 2014/03/16 05:20:25 dholland Exp $ */
+/* $NetBSD: sci.c,v 1.59 2014/06/19 18:01:18 msaitoh Exp $ */
 
 /*-
  * Copyright (C) 1999 T.Horiuchi and SAITOH Masanobu.  All rights reserved.
@@ -93,7 +93,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sci.c,v 1.58 2014/03/16 05:20:25 dholland Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sci.c,v 1.59 2014/06/19 18:01:18 msaitoh Exp $");
 
 #include "opt_kgdb.h"
 #include "opt_sci.h"
@@ -599,7 +599,6 @@
 sci_iflush(struct sci_softc *sc)
 {
        unsigned char err_c;
-       volatile unsigned char c;
 
        if (((err_c = SHREG_SCSSR)
             & (SCSSR_RDRF | SCSSR_ORER | SCSSR_FER | SCSSR_PER)) != 0) {
@@ -609,7 +608,7 @@
                        return;
                }
 
-               c = SHREG_SCRDR;
+               (void)SHREG_SCRDR;
 
                SHREG_SCSSR &= ~SCSSR_RDRF;
        }