Subject: [PATCH 5/8] regulator: pwm-regulator: Don't assign structure attributes right away

From: [email-masked] (Lee Jones)
Date: Tue, 9 Jun 2015 08:03:47 +0100

On Mon, 08 Jun 2015, Mark Brown wrote:

> On Fri, Jun 05, 2015 at 07:42:48PM +0100, Lee Jones wrote:
> > Perhaps this is just personal preference, but ...
> 
> Possibly...
> 
> > Prevents this kind of nonsense:
> 
> > 	this->is->just.silly = fetch_silly_value(&pointer);
> > 	if (!this->is->just.silly) {
> > 		printk("Silly value failed: %d\n", this->is->just.silly);
> > 		return this->is->just.silly;
> > 	}
> 
> But we don't have any of that code?  Well, one if statement where we
> check config.init_data but that's it.  A temporary does help with things
> like the above but we're not doing that in this driver are we?

Admittedly this is an extreme example, but I do consider:

	init_data = of_get_regulator_init_data(<blah>);
	if (init_data)
        	return -ENOMEM;

... neater than:

	config.init_data = of_get_regulator_init_data(<blah>);
	if (!config.init_data)
        	return -ENOMEM;

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org ? Open source software for ARM SoCs
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