linux-kernel - Re: [PATCH] pinctrl: st: Fix checking return value of syscon_regmap_lookup_by

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Date:	Fri, 28 Jun 2013 14:56:14 +0100
From:	Srinivas KANDAGATLA <srinivas.kandagatla@...com>
To:	Axel Lin <axel.lin@...ics.com>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] pinctrl: st: Fix checking return value of syscon_regmap_lookup_by_phandle()

On 28/06/13 13:16, Axel Lin wrote:
> 2013/6/28 Srinivas KANDAGATLA <srinivas.kandagatla@...com>:
>> Thankyou Axel for looking at this.
>>
>> There is already a patch is submitted for this.
>> https://lkml.org/lkml/2013/6/26/494 which I have Acked.
> 
> That is strange.
> I don't think the patch you mentioned can be applied to current pinctrl tree.
> Current code does check pinctrl_register by IS_ERR.
The patch removes the IS_ERR, because, pinctrl_register returns NULL or
a valid pointer, using IS_ERR is this case is incorrect.

Thanks,
srini
> 
>         info->pctl = pinctrl_register(pctl_desc, &pdev->dev, info);
>         if (IS_ERR(info->pctl)) {

> 
> Regards,
> Axel
> 

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