[src/trunk]: src/sys/netinet Initialize/compare pointers with NULL instead of 0.

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

details:   https://anonhg.NetBSD.org/src/rev/523ec30535d2
branches:  trunk
changeset: 749769:523ec30535d2
user:      dyoung <dyoung%NetBSD.org@localhost>
date:      Mon Dec 07 18:38:55 2009 +0000

description:
Initialize/compare pointers with NULL instead of 0.

diffstat:

 sys/netinet/in.c |  12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diffs (48 lines):

diff -r 0e38ffe5da65 -r 523ec30535d2 sys/netinet/in.c
--- a/sys/netinet/in.c  Mon Dec 07 17:38:16 2009 +0000
+++ b/sys/netinet/in.c  Mon Dec 07 18:38:55 2009 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: in.c,v 1.135 2009/09/11 22:06:29 dyoung Exp $  */
+/*     $NetBSD: in.c,v 1.136 2009/12/07 18:38:55 dyoung Exp $  */
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -91,7 +91,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: in.c,v 1.135 2009/09/11 22:06:29 dyoung Exp $");
+__KERNEL_RCSID(0, "$NetBSD: in.c,v 1.136 2009/12/07 18:38:55 dyoung Exp $");
 
 #include "opt_inet.h"
 #include "opt_inet_conf.h"
@@ -310,7 +310,7 @@
     struct lwp *l)
 {
        struct ifreq *ifr = (struct ifreq *)data;
-       struct in_ifaddr *ia = 0;
+       struct in_ifaddr *ia = NULL;
        struct in_aliasreq *ifra = (struct in_aliasreq *)data;
        struct sockaddr_in oldaddr;
        int error, hostIsNew, maskIsNew;
@@ -382,9 +382,9 @@
                    NULL) != 0)
                        return (EPERM);
 
-               if (ia == 0) {
+               if (ia == NULL) {
                        ia = malloc(sizeof(*ia), M_IFADDR, M_WAITOK|M_ZERO);
-                       if (ia == 0)
+                       if (ia == NULL)
                                return (ENOBUFS);
                        TAILQ_INSERT_TAIL(&in_ifaddrhead, ia, ia_list);
                        IFAREF(&ia->ia_ifa);
@@ -422,7 +422,7 @@
        case SIOCGIFNETMASK:
        case SIOCGIFDSTADDR:
        case SIOCGIFBRDADDR:
-               if (ia == 0)
+               if (ia == NULL)
                        return (EADDRNOTAVAIL);
                break;
        }