Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750900Ab3IFGps (ORCPT ); Fri, 6 Sep 2013 02:45:48 -0400 Received: from mail-pd0-f179.google.com ([209.85.192.179]:43466 "EHLO mail-pd0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750771Ab3IFGpr (ORCPT ); Fri, 6 Sep 2013 02:45:47 -0400 From: Sachin Kamat To: linux-kernel@vger.kernel.org Cc: anton@enomsg.org, dwmw2@infradead.org, lee.jones@linaro.org, sachin.kamat@linaro.org Subject: [PATCH v2 1/4] ab8500-charger: Check return value of regulator_enable Date: Fri, 6 Sep 2013 11:57:50 +0530 Message-Id: <1378448873-4430-1-git-send-email-sachin.kamat@linaro.org> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1978 Lines: 62 Check the return value of regulator_enable to silence the following type of warnings: drivers/power/ab8500_charger.c:1390:20: warning: ignoring return value of ‘regulator_enable’, declared with attribute warn_unused_result [-Wunused-result] Signed-off-by: Sachin Kamat Cc: Lee Jones --- Compile tested. Changes since v1: * converted dev_err and return to dev_warn as suggested by Lee Jones. --- drivers/power/ab8500_charger.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c index a4c4a10..0d355a9 100644 --- a/drivers/power/ab8500_charger.c +++ b/drivers/power/ab8500_charger.c @@ -1387,8 +1387,14 @@ static int ab8500_charger_ac_en(struct ux500_charger *charger, * the GPADC module independant of the AB8500 chargers */ if (!di->vddadc_en_ac) { - regulator_enable(di->regu); - di->vddadc_en_ac = true; + ret = regulator_enable(di->regu); + if (ret) { + dev_warn(di->dev, + "Failed to enable regulator\n"); + di->vddadc_en_ac = false; + } else { + di->vddadc_en_ac = true; + } } /* Check if the requested voltage or current is valid */ @@ -1556,8 +1562,14 @@ static int ab8500_charger_usb_en(struct ux500_charger *charger, * the GPADC module independant of the AB8500 chargers */ if (!di->vddadc_en_usb) { - regulator_enable(di->regu); - di->vddadc_en_usb = true; + ret = regulator_enable(di->regu); + if (ret) { + dev_warn(di->dev, + "Failed to enable regulator\n"); + di->vddadc_en_usb = false; + } else { + di->vddadc_en_usb = true; + } } /* Enable USB charging */ -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/