Return-path: Received: from mail-pf0-f180.google.com ([209.85.192.180]:35631 "EHLO mail-pf0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750909AbdEIEgl (ORCPT ); Tue, 9 May 2017 00:36:41 -0400 Received: by mail-pf0-f180.google.com with SMTP id v14so43128462pfd.2 for ; Mon, 08 May 2017 21:36:41 -0700 (PDT) From: Bjorn Andersson To: Eugene Krasnikov , Kalle Valo , Eyal Ilsar Cc: wcn36xx@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org Subject: [PATCH] wcn36xx: Close SMD channel on device removal Date: Mon, 8 May 2017 21:36:37 -0700 Message-Id: <20170509043637.28179-1-bjorn.andersson@linaro.org> (sfid-20170509_063721_450711_A0AE8953) Sender: linux-wireless-owner@vger.kernel.org List-ID: The SMD channel is not the primary WCNSS channel and must explicitly be closed as the device is removed, or the channel will already by open on a subsequent probe call in e.g. the case of reloading the kernel module. This issue was introduced because I simplified the underlying SMD implementation while the SMD adaptions of the driver sat on the mailing list, but missed to update these patches. The patch does however only apply back to the transition to rpmsg, hence the limited Fixes. Fixes: 5052de8deff5 ("soc: qcom: smd: Transition client drivers from smd to rpmsg") Reported-by: Eyal Ilsar Signed-off-by: Bjorn Andersson --- drivers/net/wireless/ath/wcn36xx/main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c index d5e993dc9b23..517a315e259b 100644 --- a/drivers/net/wireless/ath/wcn36xx/main.c +++ b/drivers/net/wireless/ath/wcn36xx/main.c @@ -1271,6 +1271,8 @@ static int wcn36xx_remove(struct platform_device *pdev) qcom_smem_state_put(wcn->tx_enable_state); qcom_smem_state_put(wcn->tx_rings_empty_state); + rpmsg_destroy_ept(wcn->smd_channel); + iounmap(wcn->dxe_base); iounmap(wcn->ccu_base); -- 2.12.0