From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Carpenter Subject: [PATCH] pinctrl: mediatek: fix some NULL checks in probe Date: Wed, 26 Sep 2018 13:42:30 +0300 Message-ID: <20180926104230.GC14535@mwanda> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+glpam-linux-mediatek=m.gmane.org-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org To: Linus Walleij , Zhiyong Tao Cc: Matthias Brugger , linux-gpio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Sean Wang , linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: linux-gpio@vger.kernel.org The devm_kmalloc_array() function returns NULL on error, it doesn't return error pointers. Fixes: 805250982bb5 ("pinctrl: mediatek: add pinctrl-paris that implements the vendor dt-bindings") Signed-off-by: Dan Carpenter diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c b/drivers/pinctrl/mediatek/pinctrl-paris.c index 4cf0fea30b7d..d2179028f134 100644 --- a/drivers/pinctrl/mediatek/pinctrl-paris.c +++ b/drivers/pinctrl/mediatek/pinctrl-paris.c @@ -836,8 +836,8 @@ int mtk_paris_pinctrl_probe(struct platform_device *pdev, hw->base = devm_kmalloc_array(&pdev->dev, hw->soc->nbase_names, sizeof(*hw->base), GFP_KERNEL); - if (IS_ERR(hw->base)) - return PTR_ERR(hw->base); + if (!hw->base) + return -ENOMEM; for (i = 0; i < hw->soc->nbase_names; i++) { res = platform_get_resource_byname(pdev, IORESOURCE_MEM, @@ -863,8 +863,8 @@ int mtk_paris_pinctrl_probe(struct platform_device *pdev, /* Copy from internal struct mtk_pin_desc to register to the core */ pins = devm_kmalloc_array(&pdev->dev, hw->soc->npins, sizeof(*pins), GFP_KERNEL); - if (IS_ERR(pins)) - return PTR_ERR(pins); + if (!pins) + return -ENOMEM; for (i = 0; i < hw->soc->npins; i++) { pins[i].number = hw->soc->pins[i].number; diff --git a/drivers/pinctrl/mediatek/pinctrl-moore.c b/drivers/pinctrl/mediatek/pinctrl-moore.c index c27597cd3931..3bf5dd552749 100644 --- a/drivers/pinctrl/mediatek/pinctrl-moore.c +++ b/drivers/pinctrl/mediatek/pinctrl-moore.c @@ -608,8 +608,8 @@ int mtk_moore_pinctrl_probe(struct platform_device *pdev, hw->base = devm_kmalloc_array(&pdev->dev, hw->soc->nbase_names, sizeof(*hw->base), GFP_KERNEL); - if (IS_ERR(hw->base)) - return PTR_ERR(hw->base); + if (!hw->base) + return -ENOMEM; for (i = 0; i < hw->soc->nbase_names; i++) { res = platform_get_resource_byname(pdev, IORESOURCE_MEM, @@ -629,8 +629,8 @@ int mtk_moore_pinctrl_probe(struct platform_device *pdev, /* Copy from internal struct mtk_pin_desc to register to the core */ pins = devm_kmalloc_array(&pdev->dev, hw->soc->npins, sizeof(*pins), GFP_KERNEL); - if (IS_ERR(pins)) - return PTR_ERR(pins); + if (!pins) + return -ENOMEM; for (i = 0; i < hw->soc->npins; i++) { pins[i].number = hw->soc->pins[i].number;