[src/trunk]: src/sys/arch/i386/isa Only clear the interrupt latch if we are u...

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

details:   https://anonhg.NetBSD.org/src/rev/eaa5436e8730
branches:  trunk
changeset: 755720:eaa5436e8730
user:      christos <christos%NetBSD.org@localhost>
date:      Thu Jun 17 14:41:50 2010 +0000

description:
Only clear the interrupt latch if we are using interrupts!

diffstat:

 sys/arch/i386/isa/npx.c |  7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diffs (28 lines):

diff -r ca751f747da7 -r eaa5436e8730 sys/arch/i386/isa/npx.c
--- a/sys/arch/i386/isa/npx.c   Thu Jun 17 09:37:50 2010 +0000
+++ b/sys/arch/i386/isa/npx.c   Thu Jun 17 14:41:50 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: npx.c,v 1.136 2010/04/18 23:47:51 jym Exp $    */
+/*     $NetBSD: npx.c,v 1.137 2010/06/17 14:41:50 christos Exp $       */
 
 /*-
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -96,7 +96,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: npx.c,v 1.136 2010/04/18 23:47:51 jym Exp $");
+__KERNEL_RCSID(0, "$NetBSD: npx.c,v 1.137 2010/06/17 14:41:50 christos Exp $");
 
 #if 0
 #define IPRINTF(x)     printf x
@@ -396,7 +396,8 @@
        /*
         * Clear the interrupt latch.
         */
-       bus_space_write_1(sc->sc_iot, sc->sc_ioh, 0, 0);
+       if (sc->sc_type == NPX_INTERRUPT)
+               bus_space_write_1(sc->sc_iot, sc->sc_ioh, 0, 0);
 #endif
 
        /*