From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933010AbcCHLHA (ORCPT ); Tue, 8 Mar 2016 06:07:00 -0500 Received: from hqemgate15.nvidia.com ([216.228.121.64]:13066 "EHLO hqemgate15.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932786AbcCHLGf (ORCPT ); Tue, 8 Mar 2016 06:06:35 -0500 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Tue, 08 Mar 2016 03:06:02 -0800 From: Laxman Dewangan To: , , CC: , , , , Laxman Dewangan Subject: [PATCH 3/5] regulator: pwm: Prints error number when it fails Date: Tue, 8 Mar 2016 16:23:23 +0530 Message-ID: <1457434405-30372-4-git-send-email-ldewangan@nvidia.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1457434405-30372-1-git-send-email-ldewangan@nvidia.com> References: <1457434405-30372-1-git-send-email-ldewangan@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Prints the error number along with error message when any error occurs. This helps on getting the reason of failure quickly from log without any code instrument. Signed-off-by: Laxman Dewangan Cc: Lee Jones --- drivers/regulator/pwm-regulator.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c index 4689d62..9db67a1 100644 --- a/drivers/regulator/pwm-regulator.c +++ b/drivers/regulator/pwm-regulator.c @@ -277,16 +277,18 @@ static int pwm_regulator_probe(struct platform_device *pdev) drvdata->pwm = devm_pwm_get(&pdev->dev, NULL); if (IS_ERR(drvdata->pwm)) { - dev_err(&pdev->dev, "Failed to get PWM\n"); - return PTR_ERR(drvdata->pwm); + ret = PTR_ERR(drvdata->pwm); + dev_err(&pdev->dev, "Failed to get PWM, %d\n", ret); + return ret; } regulator = devm_regulator_register(&pdev->dev, &drvdata->desc, &config); if (IS_ERR(regulator)) { - dev_err(&pdev->dev, "Failed to register regulator %s\n", - drvdata->desc.name); - return PTR_ERR(regulator); + ret = PTR_ERR(regulator); + dev_err(&pdev->dev, "Failed to register regulator %s, %d\n", + drvdata->desc.name, ret); + return ret; } return 0; -- 2.1.4