From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bartosz Golaszewski Subject: [PATCH 08/10] gpio: mockup: don't return magic numbers from probe() Date: Thu, 25 May 2017 10:33:45 +0200 Message-ID: <1495701227-28809-9-git-send-email-brgl@bgdev.pl> References: <1495701227-28809-1-git-send-email-brgl@bgdev.pl> Return-path: Received: from mail-wm0-f46.google.com ([74.125.82.46]:37817 "EHLO mail-wm0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S937750AbdEYIeF (ORCPT ); Thu, 25 May 2017 04:34:05 -0400 Received: by mail-wm0-f46.google.com with SMTP id d127so88787077wmf.0 for ; Thu, 25 May 2017 01:34:04 -0700 (PDT) In-Reply-To: <1495701227-28809-1-git-send-email-brgl@bgdev.pl> Sender: linux-gpio-owner@vger.kernel.org List-Id: linux-gpio@vger.kernel.org To: Linus Walleij , Alexandre Courbot , Bamvor Jian Zhang Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, Bartosz Golaszewski When the requested number of GPIO lines is 0, return -EINVAL, not -1 which is -EPERM. Signed-off-by: Bartosz Golaszewski --- drivers/gpio/gpio-mockup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-mockup.c b/drivers/gpio/gpio-mockup.c index f6efa97..3ffc3ce 100644 --- a/drivers/gpio/gpio-mockup.c +++ b/drivers/gpio/gpio-mockup.c @@ -381,7 +381,7 @@ static int gpio_mockup_probe(struct platform_device *pdev) ret = gpio_mockup_add(dev, &chips[i], chip_name, base, ngpio); } else { - ret = -1; + ret = -EINVAL; } if (ret) { -- 2.9.3