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From: Christian Brueffer <brueffer@FreeBSD.org>
Date: Mon, 10 Oct 2011 18:18:40 +0000 (UTC)
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Subject: svn commit: r226226 - stable/8/sys/net
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Author: brueffer
Date: Mon Oct 10 18:18:40 2011
New Revision: 226226
URL: http://svn.freebsd.org/changeset/base/226226

Log:
  MFC: r198357
  
  Check pointer for NULL before dereferencing it, not after.

Modified:
  stable/8/sys/net/if_gif.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/net/if_gif.c
==============================================================================
--- stable/8/sys/net/if_gif.c	Mon Oct 10 17:53:06 2011	(r226225)
+++ stable/8/sys/net/if_gif.c	Mon Oct 10 18:18:40 2011	(r226226)
@@ -488,7 +488,7 @@ gif_input(m, af, ifp)
 	struct ifnet *ifp;
 {
 	int isr, n;
-	struct gif_softc *sc = ifp->if_softc;
+	struct gif_softc *sc;
 	struct etherip_header *eip;
 	struct ether_header *eh;
 	struct ifnet *oldifp;
@@ -498,7 +498,7 @@ gif_input(m, af, ifp)
 		m_freem(m);
 		return;
 	}
-
+	sc = ifp->if_softc;
 	m->m_pkthdr.rcvif = ifp;
 
 #ifdef MAC