Compare m_pullup(9) return value against NULL instead of 0.

diff --git a/sys/net/rtsock.c b/sys/net/rtsock.c
index 528cd08..d7c5763 100644 (file)
--- a/sys/net/rtsock.c
+++ b/sys/net/rtsock.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: rtsock.c,v 1.368 2023/07/27 22:20:51 mvs Exp $        */
+/*     $OpenBSD: rtsock.c,v 1.369 2023/07/28 09:33:16 mvs Exp $        */
 /*     $NetBSD: rtsock.c,v 1.18 1996/03/29 00:32:10 cgd Exp $  */
 
 /*
@@ -690,7 +690,7 @@ route_output(struct mbuf *m, struct socket *so)
        u_char                   vers, type;
 
        if (m == NULL || ((m->m_len < sizeof(int32_t)) &&
-           (m = m_pullup(m, sizeof(int32_t))) == 0))
+           (m = m_pullup(m, sizeof(int32_t))) == NULL))
                return (ENOBUFS);
        if ((m->m_flags & M_PKTHDR) == 0)
                panic("route_output");