From 80b892fc8a90e91498babf0f6817139e5ec64b5c Mon Sep 17 00:00:00 2001 From: Bo YU Date: Mon, 21 Sep 2020 16:21:22 +0300 Subject: [PATCH] ath11k: Add checked value for ath11k_ahb_remove 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 Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20200621095136.7xdbzkthoxuw2qow@debian.debian-2 --- 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 b642e52..430723c 100644 --- a/drivers/net/wireless/ath/ath11k/ahb.c +++ b/drivers/net/wireless/ath/ath11k/ahb.c @@ -718,12 +718,16 @@ err_core_free: 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); -- 2.7.4