linux-kernel - Re: [PATCH v4 1/4] Input: cyttsp - use devres managed resource allocations

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Message-ID: <20160121213243.GD39970@dtor-ws>
Date:	Thu, 21 Jan 2016 13:32:43 -0800
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Oreste Salerno <oreste.salerno@...tom.com>
Cc:	linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
	fery@...ress.com, robh+dt@...nel.org, pawel.moll@....com,
	mark.rutland@....com, ijc+devicetree@...lion.org.uk,
	galak@...eaurora.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v4 1/4] Input: cyttsp - use devres managed resource
 allocations

On Thu, Jan 21, 2016 at 09:22:05PM +0100, Oreste Salerno wrote:
> On Thu, Jan 21, 2016 at 11:29:24AM -0800, Dmitry Torokhov wrote:
> > Hi Oreste,
> > 
> > On Thu, Jan 21, 2016 at 08:21:13PM +0100, Oreste Salerno wrote:
> > > Use devm_() functions for allocating memory, input device and IRQ.
> > > 
> > 
> > ...
> > 
> > > @@ -625,11 +620,8 @@ EXPORT_SYMBOL_GPL(cyttsp_probe);
> > >  
> > >  void cyttsp_remove(struct cyttsp *ts)
> > >  {
> > > -	free_irq(ts->irq, ts);
> > > -	input_unregister_device(ts->input);
> > >  	if (ts->pdata->exit)
> > >  		ts->pdata->exit();
> > > -	kfree(ts);
> > 
> > This is not quite correct as it changes the operations order... Given
> > that it is going to be removed in the next patch I guess it is OK, but
> > ideally you can add a custom devm action to shut off the chip.
> >
> 
> You mean a devm action to call pdata->exit() ? OK, I could do that.

Yes.

Thanks.

-- 
Dmitry