From: Maharaja Kennadyrajan mkenna@codeaurora.org
[ Upstream commit 3d1c60460fb2823a19ead9e6ec8f184dd7271aa7 ]
There is a race condition, when the user writes 'hw-restart' and 'hard' in the simulate_fw_crash debugfs file without any delay. In the above scenario, the firmware dump work queue(scheduled by 'hard') should be handled gracefully, while the target is in the 'hw-restart'.
Tested HW: QCA9984 Tested FW: 10.4-3.9.0.2-00044
Co-developed-by: Govindaraj Saminathan gsamin@codeaurora.org Signed-off-by: Govindaraj Saminathan gsamin@codeaurora.org Signed-off-by: Maharaja Kennadyrajan mkenna@codeaurora.org Signed-off-by: Kalle Valo kvalo@codeaurora.org Link: https://lore.kernel.org/r/1585213077-28439-1-git-send-email-mkenna@codeauror... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath10k/pci.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c index ded7a220a4aa..cd1c5d60261f 100644 --- a/drivers/net/wireless/ath/ath10k/pci.c +++ b/drivers/net/wireless/ath/ath10k/pci.c @@ -2074,6 +2074,7 @@ static void ath10k_pci_hif_stop(struct ath10k *ar) ath10k_pci_irq_sync(ar); napi_synchronize(&ar->napi); napi_disable(&ar->napi); + cancel_work_sync(&ar_pci->dump_work);
/* Most likely the device has HTT Rx ring configured. The only way to * prevent the device from accessing (and possible corrupting) host