From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755869AbcEaGgG (ORCPT ); Tue, 31 May 2016 02:36:06 -0400 Received: from mail-pa0-f68.google.com ([209.85.220.68]:35923 "EHLO mail-pa0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755696AbcEaGcA (ORCPT ); Tue, 31 May 2016 02:32:00 -0400 From: Eduardo Valentin To: Rui Zhang Cc: Linux PM , LKML , Eduardo Valentin Subject: [PATCH 03/15] thermal: sysfs: lock tz while on trip_point_type properties Date: Mon, 30 May 2016 23:31:24 -0700 Message-Id: <1464676296-5610-4-git-send-email-edubezval@gmail.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1464676296-5610-1-git-send-email-edubezval@gmail.com> References: <1464676296-5610-1-git-send-email-edubezval@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Serialized calls to tz.ops in user facing sysfs handler trip_point_type_show() and trip_point_temp_store(). Cc: Zhang Rui Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Eduardo Valentin --- drivers/thermal/thermal_sysfs.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c index 1db2406..b69036e 100644 --- a/drivers/thermal/thermal_sysfs.c +++ b/drivers/thermal/thermal_sysfs.c @@ -114,7 +114,9 @@ trip_point_type_show(struct device *dev, struct device_attribute *attr, if (sscanf(attr->attr.name, "trip_point_%d_type", &trip) != 1) return -EINVAL; + mutex_lock(&tz->lock); result = tz->ops->get_trip_type(tz, trip, &type); + mutex_unlock(&tz->lock); if (result) return result; -- 2.1.4