From: Bo YU tsu.yubo@gmail.com
[ Upstream commit 80b892fc8a90e91498babf0f6817139e5ec64b5c ]
Return value form wait_for_completion_timeout should to be checked.
This is detected by Coverity: #CID:1464479 (CHECKED_RETURN)
Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices") Signed-off-by: Bo YU tsu.yubo@gmail.com Signed-off-by: Kalle Valo kvalo@codeaurora.org Link: https://lore.kernel.org/r/20200621095136.7xdbzkthoxuw2qow@debian.debian-2 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath11k/ahb.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/ath/ath11k/ahb.c b/drivers/net/wireless/ath/ath11k/ahb.c index 30092841ac464..a0314c1c84653 100644 --- a/drivers/net/wireless/ath/ath11k/ahb.c +++ b/drivers/net/wireless/ath/ath11k/ahb.c @@ -981,12 +981,16 @@ static int ath11k_ahb_probe(struct platform_device *pdev) static int ath11k_ahb_remove(struct platform_device *pdev) { struct ath11k_base *ab = platform_get_drvdata(pdev); + unsigned long left;
reinit_completion(&ab->driver_recovery);
- if (test_bit(ATH11K_FLAG_RECOVERY, &ab->dev_flags)) - wait_for_completion_timeout(&ab->driver_recovery, - ATH11K_AHB_RECOVERY_TIMEOUT); + if (test_bit(ATH11K_FLAG_RECOVERY, &ab->dev_flags)) { + left = wait_for_completion_timeout(&ab->driver_recovery, + ATH11K_AHB_RECOVERY_TIMEOUT); + if (!left) + ath11k_warn(ab, "failed to receive recovery response completion\n"); + }
set_bit(ATH11K_FLAG_UNREGISTERING, &ab->dev_flags); cancel_work_sync(&ab->restart_work);