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wcn36xx: Don't use the destroyed hal_mutex

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[ Upstream commit d536288822 ]

ieee80211_unregister_hw() might invoke operations to stop the interface,
that uses the hal_mutex. So don't destroy it until after we're done
using it.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bjorn Andersson
2017-01-11 16:32:21 +02:00
committed by Greg Kroah-Hartman
parent 72eff92d84
commit 93e1956ddd
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/ath/wcn36xx/main.c
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@@ -1165,11 +1165,12 @@ static int wcn36xx_remove(struct platform_device *pdev)
wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n");
release_firmware(wcn->nv);
mutex_destroy(&wcn->hal_mutex);
ieee80211_unregister_hw(hw);
iounmap(wcn->dxe_base);
iounmap(wcn->ccu_base);
mutex_destroy(&wcn->hal_mutex);
ieee80211_free_hw(hw);
return 0;