linux-kernel - Re: [PATCH 1/4] gpiolib: Introduce chip addition/removal notifier

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Date:	Fri, 5 Mar 2010 23:30:24 +0300
From:	Anton Vorontsov <avorontsov@...mvista.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Grant Likely <grant.likely@...retlab.ca>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	Bill Gatliff <bgat@...lgatliff.com>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] gpiolib: Introduce chip addition/removal notifier

On Fri, Mar 05, 2010 at 11:59:18AM -0800, Andrew Morton wrote:
[...]
> > > /**
> > > * gpiochip_add() - register a gpio_chip
> > > * @chip: the chip to register, with chip->base initialized
> > > @@ -1103,6 +1107,9 @@ fail:
> > >        pr_err("gpiochip_add: gpios %d..%d (%s) not registered\n",
> > >            chip->base, chip->base + chip->ngpio - 1,
> > >            chip->label ? : "generic");
> > > +    else
> > > +        blocking_notifier_call_chain(&gpio_notifier,
> > > +                      GPIO_NOTIFY_CHIP_ADDED, chip);
> > 
> > Rather than doing an else block which will need to be reworked if/when
> > any additional code is added to the bottom of this routine, please
> > rework the if() block to bail on failure instead of implicitly falling
> > through to the return statement.
> 
> This still hasn't happened.

It's in your tree already :-)

gpiolib-cosmetic-improvements-for-error-handling-in-gpiochip_add.patch

-- 
Anton Vorontsov
email: cbouatmailru@...il.com
irc://irc.freenode.net/bd2
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