linux-kernel - Re: [PATCH 2/6] PM / OPP: restructure _of_init_opp_table

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Date:	Tue, 11 Aug 2015 14:07:44 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Stephen Boyd <sboyd@...eaurora.org>
Cc:	Rafael Wysocki <rjw@...ysocki.net>, nm@...com,
	linaro-kernel@...ts.linaro.org, linux-pm@...r.kernel.org,
	khilman@...aro.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Len Brown <len.brown@...el.com>,
	open list <linux-kernel@...r.kernel.org>,
	Pavel Machek <pavel@....cz>
Subject: Re: [PATCH 2/6] PM / OPP: restructure _of_init_opp_table_v2()

On 11-08-15, 12:27, Viresh Kumar wrote:
> diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c
> index 1daaa1a418a2..be3356a3a452 100644
> --- a/drivers/base/power/opp.c
> +++ b/drivers/base/power/opp.c
> @@ -1292,14 +1292,18 @@ static int _of_init_opp_table_v2(struct device *dev,
>  	}
>  
>  	/* There should be one of more OPP defined */
> -	if (WARN_ON(!count))
> +	if (WARN_ON(!count)) {
> +		ret = -ENOENT;
>  		goto out;
> +	}
>  
>  	if (!ret) {
>  		if (!dev_opp) {
>  			dev_opp = _find_device_opp(dev);
> -			if (WARN_ON(!dev_opp))
> +			if (WARN_ON(!dev_opp)) {

Dan also reported that !dev_opp isn't enough as we need to use IS_ERR
here.

We have got enough updates here, let me resend the series again to get
more reviews on proper patches.

-- 
viresh
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