From: Dmitry Antipov <dmantipov@xxxxxxxxx> [ Upstream commit 634fcbcaa4062db39aeb5ac6ed1bc1feb8dd5216 ] Fix possible crash and memory leak on driver unload by deleting TX purge timer and freeing C2H queue in 'rtw_core_deinit()', shrink critical section in the latter by freeing COEX queue out of TX report lock scope. Reviewed-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx> Signed-off-by: Dmitry Antipov <dmantipov@xxxxxxxxx> Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxx> Link: https://lore.kernel.org/r/20230628072327.167196-1-dmantipov@xxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/net/wireless/realtek/rtw88/main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c index 9447a3aae3b5e..c190598c47c3a 100644 --- a/drivers/net/wireless/realtek/rtw88/main.c +++ b/drivers/net/wireless/realtek/rtw88/main.c @@ -2180,10 +2180,12 @@ void rtw_core_deinit(struct rtw_dev *rtwdev) release_firmware(wow_fw->firmware); destroy_workqueue(rtwdev->tx_wq); + timer_delete_sync(&rtwdev->tx_report.purge_timer); spin_lock_irqsave(&rtwdev->tx_report.q_lock, flags); skb_queue_purge(&rtwdev->tx_report.queue); - skb_queue_purge(&rtwdev->coex.queue); spin_unlock_irqrestore(&rtwdev->tx_report.q_lock, flags); + skb_queue_purge(&rtwdev->coex.queue); + skb_queue_purge(&rtwdev->c2h_queue); list_for_each_entry_safe(rsvd_pkt, tmp, &rtwdev->rsvd_page_list, build_list) { -- 2.40.1
