From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sean Wang Subject: Re: [PATCH] pinctrl: mediatek: fix some NULL checks in probe Date: Thu, 27 Sep 2018 06:25:01 +0800 Message-ID: <1538000701.30348.16.camel@mtkswgap22> References: <20180926104230.GC14535@mwanda> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20180926104230.GC14535@mwanda> 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: Dan Carpenter Cc: Zhiyong Tao , Linus Walleij , kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-gpio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Matthias Brugger List-Id: linux-mediatek@lists.infradead.org Hi, The same patch is already being sent and applied in [1]. Sean [1] http://lists.infradead.org/pipermail/linux-mediatek/2018-September/015280.html http://lists.infradead.org/pipermail/linux-mediatek/2018-September/015283.html On Wed, 2018-09-26 at 13:42 +0300, Dan Carpenter wrote: > 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;