linux-kernel - Re: [PATCH] media: ov7251: add missing clk_disable_unprepare() on error in ov7251_set_power

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Message-ID: <YrBDbjS8rAGM4t4u@smile.fi.intel.com>
Date:   Mon, 20 Jun 2022 12:52:46 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Yang Yingliang <yangyingliang@...wei.com>
Cc:     linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        mchehab@...nel.org, djrscally@...il.com,
        sakari.ailus@...ux.intel.com
Subject: Re: [PATCH] media: ov7251: add missing clk_disable_unprepare() on
 error in ov7251_set_power_on()

On Mon, Jun 20, 2022 at 04:48:46PM +0800, Yang Yingliang wrote:
> On 2022/6/17 18:20, Andy Shevchenko wrote:
> > On Fri, Jun 17, 2022 at 09:39:43AM +0800, Yang Yingliang wrote:

...

> > >   	if (ret < 0) {
> > >   		dev_err(ov7251->dev, "error during global init\n");
> > > +		clk_disable_unprepare(ov7251->xclk);
> > >   		ov7251_regulators_disable(ov7251);
> > Logically it should go here. Please, read a code above this check.
> Do you mean print the error code on error path ?

The new code, you added, should be in correct order (reversed in comparison to
resource allocation / registration).

> > >   		return ret;
> > >   	}

-- 
With Best Regards,
Andy Shevchenko