[src/trunk]: src/sys/dev Explicitly initialise vaddr_t and let dead store eli...

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

details:   https://anonhg.NetBSD.org/src/rev/a351f3440ae8
branches:  trunk
changeset: 766133:a351f3440ae8
user:      joerg <joerg%NetBSD.org@localhost>
date:      Thu Jun 16 16:20:28 2011 +0000

description:
Explicitly initialise vaddr_t and let dead store elimination remove it
later.

diffstat:

 sys/dev/mm.c |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (26 lines):

diff -r 96d2f8cb1a28 -r a351f3440ae8 sys/dev/mm.c
--- a/sys/dev/mm.c      Thu Jun 16 15:33:24 2011 +0000
+++ b/sys/dev/mm.c      Thu Jun 16 16:20:28 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: mm.c,v 1.14 2011/06/12 03:35:51 rmind Exp $    */
+/*     $NetBSD: mm.c,v 1.15 2011/06/16 16:20:28 joerg Exp $    */
 
 /*-
  * Copyright (c) 2002, 2008, 2010 The NetBSD Foundation, Inc.
@@ -34,7 +34,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: mm.c,v 1.14 2011/06/12 03:35:51 rmind Exp $");
+__KERNEL_RCSID(0, "$NetBSD: mm.c,v 1.15 2011/06/16 16:20:28 joerg Exp $");
 
 #include "opt_compat_netbsd.h"
 
@@ -168,6 +168,7 @@
        /* Is physical address directly mapped?  Return VA. */
        have_direct = mm_md_direct_mapped_phys(paddr, &vaddr);
 #else
+       vaddr = 0;
        have_direct = false;
 #endif
        if (!have_direct) {