From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754369Ab3HSCHv (ORCPT ); Sun, 18 Aug 2013 22:07:51 -0400 Received: from mail-pa0-f41.google.com ([209.85.220.41]:51287 "EHLO mail-pa0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753157Ab3HSCHu (ORCPT ); Sun, 18 Aug 2013 22:07:50 -0400 Message-ID: <1376878066.10251.4.camel@phoenix> Subject: [PATCH 2/2] pinctrl: core: Add proper mutex lock in pinctrl_request_gpio From: Axel Lin To: Linus Walleij Cc: Patrice Chotard , linux-kernel@vger.kernel.org Date: Mon, 19 Aug 2013 10:07:46 +0800 In-Reply-To: <1376877989.10251.2.camel@phoenix> References: <1376877989.10251.2.camel@phoenix> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.6.4-0ubuntu1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This one is missed in commit 42fed7ba "pinctrl: move subsystem mutex to pinctrl_dev struct". Signed-off-by: Axel Lin --- drivers/pinctrl/core.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index 53c40d9..92f86ab 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -562,11 +562,15 @@ int pinctrl_request_gpio(unsigned gpio) return ret; } + mutex_lock(&pctldev->mutex); + /* Convert to the pin controllers number space */ pin = gpio_to_pin(range, gpio); ret = pinmux_request_gpio(pctldev, range, pin, gpio); + mutex_unlock(&pctldev->mutex); + return ret; } EXPORT_SYMBOL_GPL(pinctrl_request_gpio); -- 1.8.1.2