sbdrop(): use NULL instead of 0 in pointer assignment

ok bluhm@

diff --git a/sys/kern/uipc_socket2.c b/sys/kern/uipc_socket2.c
index 27887c8..0d9bd20 100644 (file)
--- a/sys/kern/uipc_socket2.c
+++ b/sys/kern/uipc_socket2.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: uipc_socket2.c,v 1.105 2021/02/10 08:20:09 mvs Exp $  */
+/*     $OpenBSD: uipc_socket2.c,v 1.106 2021/02/11 20:28:57 mvs Exp $  */
 /*     $NetBSD: uipc_socket2.c,v 1.11 1996/02/04 02:17:55 christos Exp $       */
 
 /*
@@ -973,7 +973,7 @@ sbdrop(struct socket *so, struct sockbuf *sb, int len)
        KASSERT(sb == &so->so_rcv || sb == &so->so_snd);
        soassertlocked(so);
 
-       next = (m = sb->sb_mb) ? m->m_nextpkt : 0;
+       next = (m = sb->sb_mb) ? m->m_nextpkt : NULL;
        while (len > 0) {
                if (m == NULL) {
                        if (next == NULL)