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Check the return value of pci_find_cap()

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Kevin Lo 2012-06-06 02:42:30 +00:00
parent 11e3340235
commit 858f9d27f0
1 changed files with 7 additions and 6 deletions
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13
sys/dev/ae/if_ae.c
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@ -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