Messages in this thread | | | Date | Mon, 18 Jun 2012 13:52:06 +0200 | Subject | Re: Q: return of pinctrl_register and handing at drivers that use this function | From | Linus Walleij <> |
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On Mon, Jun 18, 2012 at 1:47 PM, devendra.aaru <devendra.aaru@gmail.com> wrote:
> 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?
Yes. (Unless I did something wrong.)
> 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.
You are absolutely right.
Yours, Linus Walleij
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