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Add 2 missing bus_dmamap_sync() calls. Those fix random 'scan timeout',

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'could not set power mode', 'device config failed' and other errors due
reading invalid memory.

Obtained from:	OpenBSD
MFC after:	3 days
This commit is contained in:
bschmidt 2010-12-18 15:45:10 +00:00
parent f252b73cec
commit f980e591e2
1 changed files with 6 additions and 0 deletions
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6
sys/dev/wpi/if_wpi.c
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@ -1645,9 +1645,15 @@ wpi_notif_intr(struct wpi_softc *sc)
struct wpi_rx_data *data;
uint32_t hw;
bus_dmamap_sync(sc->shared_dma.tag, sc->shared_dma.map,
BUS_DMASYNC_POSTREAD);
hw = le32toh(sc->shared->next);
while (sc->rxq.cur != hw) {
data = &sc->rxq.data[sc->rxq.cur];
bus_dmamap_sync(sc->rxq.data_dmat, data->map,
BUS_DMASYNC_POSTREAD);
desc = (void *)data->m->m_ext.ext_buf;
DPRINTFN(WPI_DEBUG_NOTIFY,