From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 36A14ECDE46 for ; Wed, 31 Oct 2018 08:58:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F230720838 for ; Wed, 31 Oct 2018 08:58:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F230720838 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-wireless-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727801AbeJaR4D (ORCPT ); Wed, 31 Oct 2018 13:56:03 -0400 Received: from alexa-out-ams-01.qualcomm.com ([185.23.61.162]:23737 "EHLO alexa-out-ams-01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727760AbeJaR4B (ORCPT ); Wed, 31 Oct 2018 13:56:01 -0400 X-IronPort-AV: E=Sophos;i="5.54,447,1534802400"; d="scan'208";a="1418136" Received: from ironmsg01-ams.qualcomm.com ([10.251.56.2]) by alexa-out-ams-01.qualcomm.com with ESMTP; 31 Oct 2018 09:52:37 +0100 X-IronPort-AV: E=McAfee;i="5900,7806,9062"; a="6147936" Received: from lx-merez1.mea.qualcomm.com ([10.18.173.103]) by ironmsg01-ams.qualcomm.com with ESMTP; 31 Oct 2018 09:52:36 +0100 From: Maya Erez To: Kalle Valo Cc: Lior David , linux-wireless@vger.kernel.org, wil6210@qti.qualcomm.com, Maya Erez Subject: [PATCH 16/16] wil6210: fix locking in wmi_call Date: Wed, 31 Oct 2018 10:52:24 +0200 Message-Id: <1540975944-30576-17-git-send-email-merez@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1540975944-30576-1-git-send-email-merez@codeaurora.org> References: <1540975944-30576-1-git-send-email-merez@codeaurora.org> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Lior David Switch from spin_lock to spin_lock_irqsave, because wmi_ev_lock is used inside interrupt handler. Signed-off-by: Lior David Signed-off-by: Maya Erez --- drivers/net/wireless/ath/wil6210/wmi.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c index f46c703..345f059 100644 --- a/drivers/net/wireless/ath/wil6210/wmi.c +++ b/drivers/net/wireless/ath/wil6210/wmi.c @@ -1966,16 +1966,17 @@ int wmi_call(struct wil6210_priv *wil, u16 cmdid, u8 mid, void *buf, u16 len, { int rc; unsigned long remain; + ulong flags; mutex_lock(&wil->wmi_mutex); - spin_lock(&wil->wmi_ev_lock); + spin_lock_irqsave(&wil->wmi_ev_lock, flags); wil->reply_id = reply_id; wil->reply_mid = mid; wil->reply_buf = reply; wil->reply_size = reply_size; reinit_completion(&wil->wmi_call); - spin_unlock(&wil->wmi_ev_lock); + spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); rc = __wmi_send(wil, cmdid, mid, buf, len); if (rc) @@ -1995,12 +1996,12 @@ int wmi_call(struct wil6210_priv *wil, u16 cmdid, u8 mid, void *buf, u16 len, } out: - spin_lock(&wil->wmi_ev_lock); + spin_lock_irqsave(&wil->wmi_ev_lock, flags); wil->reply_id = 0; wil->reply_mid = U8_MAX; wil->reply_buf = NULL; wil->reply_size = 0; - spin_unlock(&wil->wmi_ev_lock); + spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); mutex_unlock(&wil->wmi_mutex); -- 1.9.1