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From: Pyun YongHyeon <yongari@FreeBSD.org>
Date: Tue, 12 Jun 2012 07:53:39 +0000 (UTC)
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Subject: svn commit: r236946 - stable/8/sys/dev/ae
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Author: yongari
Date: Tue Jun 12 07:53:39 2012
New Revision: 236946
URL: http://svn.freebsd.org/changeset/base/236946

Log:
  MFC 236649,236670:
    Check the return value of pci_find_extcap()

Modified:
  stable/8/sys/dev/ae/if_ae.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/boot/   (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)
  stable/8/sys/dev/e1000/   (props changed)

Modified: stable/8/sys/dev/ae/if_ae.c
==============================================================================
--- stable/8/sys/dev/ae/if_ae.c	Tue Jun 12 07:43:01 2012	(r236945)
+++ stable/8/sys/dev/ae/if_ae.c	Tue Jun 12 07:53:39 2012	(r236946)
@@ -1382,12 +1382,13 @@ ae_pm_init(ae_softc_t *sc)
 	/*
 	 * Configure PME.
 	 */
-	pci_find_extcap(sc->dev, PCIY_PMG, &pmc);
-	pmstat = pci_read_config(sc->dev, pmc + PCIR_POWER_STATUS, 2);
-	pmstat &= ~(PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE);
-	if ((ifp->if_capenable & IFCAP_WOL) != 0)
-		pmstat |= PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE;
-	pci_write_config(sc->dev, pmc + PCIR_POWER_STATUS, pmstat, 2);
+	if (pci_find_extcap(sc->dev, PCIY_PMG, &pmc) == 0) {
+		pmstat = pci_read_config(sc->dev, pmc + PCIR_POWER_STATUS, 2);
+		pmstat &= ~(PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE);
+		if ((ifp->if_capenable & IFCAP_WOL) != 0)
+			pmstat |= PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE;
+		pci_write_config(sc->dev, pmc + PCIR_POWER_STATUS, pmstat, 2);
+	}
 }
 
 static int