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Date: Mon, 18 Jun 2012 17:17:22 +0530
Message-ID: <CAHdPZaNF-Tgz_ncnrJp7xsCbGWEgcfmj_yuY0Q8EiWRt-g0rFw@mail.gmail.com>
Subject: Q: return of pinctrl_register and handing at drivers that use this function
From: "devendra.aaru" <devendra.aaru@gmail.com>
To: Linus Walleij <linus.walleij@linaro.org>,
        Stephen Warren <swarren@wwwdotorg.org>, linux-kernel@vger.kernel.org
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Sender: linux-kernel-owner@vger.kernel.org
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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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