Don't check mp for NULL twice. From Michael W. Bomardieri <mb@il.net>
via tech-net@NetBSD.org. Thanks!
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@ -1,4 +1,4 @@
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/* $NetBSD: if_ppp.c,v 1.137 2012/10/11 20:05:50 christos Exp $ */
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/* $NetBSD: if_ppp.c,v 1.138 2012/11/25 09:06:43 mbalmer Exp $ */
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/* Id: if_ppp.c,v 1.6 1997/03/04 03:33:00 paulus Exp */
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/*
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@ -102,7 +102,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_ppp.c,v 1.137 2012/10/11 20:05:50 christos Exp $");
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__KERNEL_RCSID(0, "$NetBSD: if_ppp.c,v 1.138 2012/11/25 09:06:43 mbalmer Exp $");
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#include "ppp.h"
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@ -1266,7 +1266,7 @@ ppp_ccp(struct ppp_softc *sc, struct mbuf *m, int rcvd)
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mp = m->m_next;
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if (mp == NULL)
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return;
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dp = (mp != NULL)? mtod(mp, u_char *): NULL;
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dp = mtod(mp, u_char *);
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} else {
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mp = m;
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dp = mtod(mp, u_char *) + PPP_HDRLEN;
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