diff options
| author |   Michal Kazior <michal.kazior@tieto.com> | 2014-07-14 16:25:25 +0300 |
|---|---|---|
| committer |   Kalle Valo <kvalo@qca.qualcomm.com> | 2014-07-15 11:18:58 +0300 |
| commit | 2374b18684dfed2a0588efe4df716d16554da467 (patch) | |
| tree | 47be53e5596ff37aafa1a0648778bf3083f63091 /drivers/net/wireless/ath/ath10k/pci.h | |
| parent | ath10k: fix unregister deadlock when fw probe fails (diff) | |
| download | linux-dev-2374b18684dfed2a0588efe4df716d16554da467.tar.xz linux-dev-2374b18684dfed2a0588efe4df716d16554da467.zip | |
ath10k: fix bmi exchange tx/rx race
It was possible for tx completion not to be
processed. In that case an old stack pointer was
left on copy engine tx ring. Next bmi exchange
would immediately pop it and use complete() on the
completion struct there causing corruption.
Make sure to wait for both tx and rx completions
properly.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/pci.h')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/pci.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath10k/pci.h b/drivers/net/wireless/ath/ath10k/pci.h index dfdebb4157aa..940129209990 100644 --- a/drivers/net/wireless/ath/ath10k/pci.h +++ b/drivers/net/wireless/ath/ath10k/pci.h @@ -38,7 +38,8 @@ #define DIAG_TRANSFER_LIMIT 2048 struct bmi_xfer { - struct completion done; + bool tx_done; + bool rx_done; bool wait_for_resp; u32 resp_len; }; |