linux-kernel - Re: [PATCH v1 3/3] thermal: zx2967: add thermal driver for ZTE's zx2967 family

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Date:   Mon, 9 Jan 2017 16:42:56 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Jun Nie <jun.nie@...aro.org>
Cc:     Baoyou Xie <baoyou.xie@...aro.org>, rui.zhang@...el.com,
        edubezval@...il.com, robh+dt@...nel.org, mark.rutland@....com,
        gregkh@...uxfoundation.org, davem@...emloft.net,
        geert+renesas@...der.be, akpm@...ux-foundation.org,
        mchehab@...nel.org, linux@...ck-us.net, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, xie.baoyou@....com.cn,
        chen.chaokai@....com.cn, wang.qiang01@....com.cn
Subject: Re: [PATCH v1 3/3] thermal: zx2967: add thermal driver for ZTE's
 zx2967 family

On Mon, Jan 09, 2017 at 11:00:38AM +0800, Jun Nie wrote:
> >+static int zx2967_thermal_resume(struct device *dev)
> >+{
> >+	struct platform_device *pdev = to_platform_device(dev);
> >+	struct zx2967_thermal_priv *priv = platform_get_drvdata(pdev);
> >+	int error;
> >+
> >+	error = clk_prepare_enable(priv->clk_gate);
> >+	if (error)
> Use IS_ERR(ret) to check error.

No.  IS_ERR() checks on pointer, while clk_prepare_enable() returns
integer.

Shawn

> >+		return error;
> >+
> >+	error = clk_prepare_enable(priv->pclk);
> >+	if (error)
> Ditto.
> >+		return error;
> >+
> >+	dev_info(dev, "resumed\n");
> >+
> >+	return 0;
> >+}