From patchwork Wed Jan 7 00:58:25 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: srinivas pandruvada X-Patchwork-Id: 5578611 X-Patchwork-Delegate: jikos@jikos.cz Return-Path: X-Original-To: patchwork-linux-input@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id E2AAFBFE6A for ; Wed, 7 Jan 2015 00:59:47 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id AFFAC202AE for ; Wed, 7 Jan 2015 00:59:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7FF2E2027D for ; Wed, 7 Jan 2015 00:59:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753951AbbAGA7l (ORCPT ); Tue, 6 Jan 2015 19:59:41 -0500 Received: from mga11.intel.com ([192.55.52.93]:8970 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752116AbbAGA7l (ORCPT ); Tue, 6 Jan 2015 19:59:41 -0500 Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga102.fm.intel.com with ESMTP; 06 Jan 2015 16:59:39 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.07,711,1413270000"; d="scan'208";a="665491833" Received: from spandruv-desktop.jf.intel.com ([10.7.199.150]) by orsmga002.jf.intel.com with ESMTP; 06 Jan 2015 16:59:38 -0800 From: Srinivas Pandruvada To: jkosina@suse.cz, jic23@kernel.org Cc: linux-iio@vger.kernel.org, linux-input@vger.kernel.org, Srinivas Pandruvada Subject: [PATCH] HID: sensor-hub: correct dyn_callback_lock IRQ-safe change Date: Tue, 6 Jan 2015 16:58:25 -0800 Message-Id: <1420592328-9942-2-git-send-email-srinivas.pandruvada@linux.intel.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1420592328-9942-1-git-send-email-srinivas.pandruvada@linux.intel.com> References: <1420592328-9942-1-git-send-email-srinivas.pandruvada@linux.intel.com> Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Commit 0ccf091d1fbc1f99bb7f93bff8cf346769a9b0cd ("HID: sensor-hub: make dyn_callback_lock IRQ-safe) was supposed to change locks in sensor_hub_get_callback(), but missed. Signed-off-by: Srinivas Pandruvada --- drivers/hid/hid-sensor-hub.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c index 6a58b6c..e54ce10 100644 --- a/drivers/hid/hid-sensor-hub.c +++ b/drivers/hid/hid-sensor-hub.c @@ -135,8 +135,9 @@ static struct hid_sensor_hub_callbacks *sensor_hub_get_callback( { struct hid_sensor_hub_callbacks_list *callback; struct sensor_hub_data *pdata = hid_get_drvdata(hdev); + unsigned long flags; - spin_lock(&pdata->dyn_callback_lock); + spin_lock_irqsave(&pdata->dyn_callback_lock, flags); list_for_each_entry(callback, &pdata->dyn_callback_list, list) if (callback->usage_id == usage_id && (collection_index >= @@ -145,10 +146,11 @@ static struct hid_sensor_hub_callbacks *sensor_hub_get_callback( callback->hsdev->end_collection_index)) { *priv = callback->priv; *hsdev = callback->hsdev; - spin_unlock(&pdata->dyn_callback_lock); + spin_unlock_irqrestore(&pdata->dyn_callback_lock, + flags); return callback->usage_callback; } - spin_unlock(&pdata->dyn_callback_lock); + spin_unlock_irqrestore(&pdata->dyn_callback_lock, flags); return NULL; }