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mwifiex: fix empty TX ring check for PCIe8897 while unloading driver 

While unloading driver, we free all pending TX packets by flushing
TX ring. There is unhandled case for PCIE8897 while checking for
ring empty condition.

This patch adds the handling by calling mwifiex_pcie_txbd_empty().

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Avinash Patil 2013-02-15 21:37:54 -08:00 committed by John W. Linville
parent a9908ebf5c
commit 3d48203847
1 changed files with 1 additions and 4 deletions
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5
drivers/net/wireless/mwifiex/pcie.c
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@ -1023,10 +1023,7 @@ static int mwifiex_pcie_send_data_complete(struct mwifiex_adapter *adapter)
adapter->data_sent = false;
if (card->txbd_flush) {
if (((card->txbd_wrptr & reg->tx_mask) ==
(card->txbd_rdptr & reg->tx_mask)) &&
((card->txbd_wrptr & reg->tx_rollover_ind) !=
(card->txbd_rdptr & reg->tx_rollover_ind)))
if (mwifiex_pcie_txbd_empty(card, card->txbd_rdptr))
card->txbd_flush = 0;
else
mwifiex_clean_pcie_ring_buf(adapter);