linux-kernel - Q: return of pinctrl_register and handing at drivers that use this function

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Date:	Mon, 18 Jun 2012 17:17:22 +0530
From:	"devendra.aaru" <devendra.aaru@...il.com>
To:	Linus Walleij <linus.walleij@...aro.org>,
	Stephen Warren <swarren@...dotorg.org>,
	linux-kernel@...r.kernel.org
Subject: Q: return of pinctrl_register and handing at drivers that use this function

Hi,

since the pinctrl_register returns a pointer of structure type "struct
pinctrl_dev" or NULL if it was failed to register the pinctrl driver,
so IS_ERR checking is not required?

My understanding about IS_ERR is that its used when the pointer
addresses are kind of error codes rather actual addresses,
but are a kind of return codes of functions returning integer types.

Please correct me if my understanding is not correct.

Thanks,
Devendra.
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