diff options
| author | Luis R. Rodriguez <lrodriguez@atheros.com> | 2008-12-03 14:35:29 +0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-12-05 17:35:59 +0300 |
| commit | f8316df10c4e3bec5b4c3a5a8e026c577640c3a6 (patch) | |
| tree | f56af9c85de35bda97a0b45275eed6b6f7362712 /drivers/net/wireless/ath9k/recv.c | |
| parent | 73a5267087b5acd4a4288e0a1b809f09ca578d49 (diff) | |
| download | linux-f8316df10c4e3bec5b4c3a5a8e026c577640c3a6.tar.xz | |
ath9k: Check for pci_map_single() errors
pci_map_single() can fail so detect those errors with
pci_dma_mapping_error() and deal with them accordingly.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath9k/recv.c')
| -rw-r--r-- | drivers/net/wireless/ath9k/recv.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath9k/recv.c b/drivers/net/wireless/ath9k/recv.c index 51e058710d17..7a455468823b 100644 --- a/drivers/net/wireless/ath9k/recv.c +++ b/drivers/net/wireless/ath9k/recv.c @@ -304,6 +304,15 @@ int ath_rx_init(struct ath_softc *sc, int nbufs) bf->bf_buf_addr = pci_map_single(sc->pdev, skb->data, sc->sc_rxbufsize, PCI_DMA_FROMDEVICE); + if (unlikely(pci_dma_mapping_error(sc->pdev, + bf->bf_buf_addr))) { + dev_kfree_skb_any(skb); + bf->bf_mpdu = NULL; + DPRINTF(sc, ATH_DBG_CONFIG, + "pci_dma_mapping_error() on RX init\n"); + error = -ENOMEM; + break; + } bf->bf_dmacontext = bf->bf_buf_addr; } sc->sc_rxlink = NULL; @@ -589,6 +598,14 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush) bf->bf_buf_addr = pci_map_single(sc->pdev, requeue_skb->data, sc->sc_rxbufsize, PCI_DMA_FROMDEVICE); + if (unlikely(pci_dma_mapping_error(sc->pdev, + bf->bf_buf_addr))) { + dev_kfree_skb_any(requeue_skb); + bf->bf_mpdu = NULL; + DPRINTF(sc, ATH_DBG_CONFIG, + "pci_dma_mapping_error() on RX\n"); + break; + } bf->bf_dmacontext = bf->bf_buf_addr; /* |