From: Wen Gong <wgong@codeaurora.org>
Date: Thu, 27 Jun 2019 18:21:51 +0000 (+0300)
Subject: ath10k: destroy sdio workqueue while remove sdio module
X-Git-Tag: v5.1.20~195
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d77aa90484840f2c04df3156a1d86f1c8de9a2ad;p=thirdparty%2Fkernel%2Fstable.git

ath10k: destroy sdio workqueue while remove sdio module

[ Upstream commit 3ed39f8e747a7aafeec07bb244f2c3a1bdca5730 ]

The workqueue need to flush and destory while remove sdio module,
otherwise it will have thread which is not destory after remove
sdio modules.

Tested with QCA6174 SDIO with firmware
WLAN.RMH.4.4.1-00007-QCARMSWP-1.

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/net/wireless/ath/ath10k/sdio.c b/drivers/net/wireless/ath/ath10k/sdio.c
index 73ef3e75d1992..28bdf0212538f 100644
--- a/drivers/net/wireless/ath/ath10k/sdio.c
+++ b/drivers/net/wireless/ath/ath10k/sdio.c
@@ -2081,6 +2081,9 @@ static void ath10k_sdio_remove(struct sdio_func *func)
 	cancel_work_sync(&ar_sdio->wr_async_work);
 	ath10k_core_unregister(ar);
 	ath10k_core_destroy(ar);
+
+	flush_workqueue(ar_sdio->workqueue);
+	destroy_workqueue(ar_sdio->workqueue);
 }
 
 static const struct sdio_device_id ath10k_sdio_devices[] = {