Author: kevlo
Date: Wed Jun 6 02:42:30 2012
New Revision: 236649
URL: http://svn.freebsd.org/changeset/base/236649
Log:
Check the return value of pci_find_cap()
Modified:
head/sys/dev/ae/if_ae.c
Modified: head/sys/dev/ae/if_ae.c
==============================================================================
--- head/sys/dev/ae/if_ae.c Wed Jun 6 01:01:12 2012 (r236648)
+++ head/sys/dev/ae/if_ae.c Wed Jun 6 02:42:30 2012 (r236649)
@@ -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(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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