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| author | kevlo <kevlo@FreeBSD.org> | 2012-06-06 02:42:30 +0000 |
|---|---|---|
| committer | kevlo <kevlo@FreeBSD.org> | 2012-06-06 02:42:30 +0000 |
| commit | 189fa08e47a3906066f9b390ce70cd71487ca409 (patch) | |
| tree | d2c9d763339a773e835288744baa5259371899bd | |
| parent | 17a0246939494f40a3aae8312fe12157f19b2068 (diff) | |
| download | FreeBSD-src-189fa08e47a3906066f9b390ce70cd71487ca409.zip FreeBSD-src-189fa08e47a3906066f9b390ce70cd71487ca409.tar.gz | |
Check the return value of pci_find_cap()
| -rw-r--r-- | sys/dev/ae/if_ae.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/sys/dev/ae/if_ae.c b/sys/dev/ae/if_ae.c index 3b882ee..9e10780 100644 --- a/sys/dev/ae/if_ae.c +++ b/sys/dev/ae/if_ae.c @@ -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 |
