[src/trunk]: src/sys/ddb avoid leftshift of an unsigned value

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

details:   https://anonhg.NetBSD.org/src/rev/6ee7cd4f5e27
branches:  trunk
changeset: 829500:6ee7cd4f5e27
user:      mrg <mrg%NetBSD.org@localhost>
date:      Sun Feb 04 09:17:54 2018 +0000

description:
avoid leftshift of an unsigned value

diffstat:

 sys/ddb/db_access.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 0eac852b642d -r 6ee7cd4f5e27 sys/ddb/db_access.c
--- a/sys/ddb/db_access.c       Sun Feb 04 09:15:44 2018 +0000
+++ b/sys/ddb/db_access.c       Sun Feb 04 09:17:54 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: db_access.c,v 1.22 2015/06/06 22:06:05 matt Exp $      */
+/*     $NetBSD: db_access.c,v 1.23 2018/02/04 09:17:54 mrg Exp $       */
 
 /*
  * Mach Operating System
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: db_access.c,v 1.22 2015/06/06 22:06:05 matt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: db_access.c,v 1.23 2018/02/04 09:17:54 mrg Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_kgdb.h"
@@ -74,7 +74,7 @@
 
        if (size < sizeof(db_expr_t) && is_signed
            && (value & ((db_expr_t)1 << (8*size - 1)))) {
-               value |= ~(db_expr_t)0 << (8*size - 1);
+               value |= (unsigned long)~(db_expr_t)0 << (8*size - 1);
        }
        return (value);
 }