Author: kevlo
Date: Mon Jun 11 01:44:17 2012
New Revision: 236865
URL: http://svn.freebsd.org/changeset/base/236865
Log:
MFC r236649,236670:
Check the return value of pci_find_cap()
Modified:
stable/9/sys/dev/ae/if_ae.c
Directory Properties:
stable/9/sys/dev/ (props changed)
Modified: stable/9/sys/dev/ae/if_ae.c
==============================================================================
--- stable/9/sys/dev/ae/if_ae.c Mon Jun 11 01:38:34 2012 (r236864)
+++ stable/9/sys/dev/ae/if_ae.c Mon Jun 11 01:44:17 2012 (r236865)
@@ -1381,12 +1381,13 @@ ae_pm_init(ae_softc_t *sc)
/*
* Configure PME.
*/
- pci_find_cap(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_cap(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
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