diff options
| -rw-r--r-- | drivers/net/wireless/marvell/mwifiex/pcie.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c index 3f4ca28356ac..a0d918094889 100644 --- a/drivers/net/wireless/marvell/mwifiex/pcie.c +++ b/drivers/net/wireless/marvell/mwifiex/pcie.c @@ -439,9 +439,14 @@ static void mwifiex_delay_for_sleep_cookie(struct mwifiex_adapter *adapter, struct pcie_service_card *card = adapter->card; u8 *buffer; u32 sleep_cookie, count; + struct sk_buff *cmdrsp = card->cmdrsp_buf; for (count = 0; count < max_delay_loop_cnt; count++) { - buffer = card->cmdrsp_buf->data; + pci_dma_sync_single_for_cpu(card->dev, + MWIFIEX_SKB_DMA_ADDR(cmdrsp), + sizeof(sleep_cookie), + PCI_DMA_FROMDEVICE); + buffer = cmdrsp->data; sleep_cookie = READ_ONCE(*(u32 *)buffer); if (sleep_cookie == MWIFIEX_DEF_SLEEP_COOKIE) { @@ -449,6 +454,10 @@ static void mwifiex_delay_for_sleep_cookie(struct mwifiex_adapter *adapter, "sleep cookie found at count %d\n", count); break; } + pci_dma_sync_single_for_device(card->dev, + MWIFIEX_SKB_DMA_ADDR(cmdrsp), + sizeof(sleep_cookie), + PCI_DMA_FROMDEVICE); usleep_range(20, 30); } |