linux-kernel - Re: [PATCH v1] pwm: dwc: allow suspend/resume for 16 channels

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Date: Fri, 12 Apr 2024 19:45:48 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Raag Jadav <raag.jadav@...el.com>
Cc: u.kleine-koenig@...gutronix.de, jarkko.nikula@...ux.intel.com,
	mika.westerberg@...ux.intel.com, linux-pwm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] pwm: dwc: allow suspend/resume for 16 channels

On Fri, Apr 12, 2024 at 07:15:11PM +0300, Raag Jadav wrote:
> On Fri, Apr 12, 2024 at 06:35:51PM +0300, Andy Shevchenko wrote:
> > On Fri, Apr 12, 2024 at 11:38:12AM +0530, Raag Jadav wrote:

..

> > > +	data = devm_kzalloc(dev, struct_size(data, chips, info->nr), GFP_KERNEL);
> > > +	if (!data)
> > > +		return dev_err_probe(dev, -ENOMEM, "Failed to allocate drvdata\n");
> > 
> > Haven't noticed before, but we do not print messages for -ENOMEM. Just return
> > the code.
> 
> Any special case for -ENOMEM?

Yes. But I have no link to the discussion at hand. Just believe me, or look into
Git history for changes that drop that messaging. Perhaps one or two will give a
hint where it starts from...

> I found a few drivers which still do.

They should be fixed.

-- 
With Best Regards,
Andy Shevchenko