linux-kernel - Re: [PATCH 1/5] gpio: dwapb: drop irq_setup_generic

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Message-ID: <CACRpkdZOJMQV8YLyJ7za08MnyyuSX3RwJ77P+J0bC7qFQPar3w@mail.gmail.com>
Date:	Thu, 10 Apr 2014 19:35:14 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:	Jamie Iles <jamie@...ieiles.com>, Alan Tull <atull@...era.com>,
	Alexandre Courbot <gnurou@...il.com>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Dinh Nguyen <dinguyen@...era.com>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Subject: Re: [PATCH 1/5] gpio: dwapb: drop irq_setup_generic_chip()

On Mon, Apr 7, 2014 at 12:13 PM, Sebastian Andrzej Siewior
<bigeasy@...utronix.de> wrote:

> The driver calls irq_alloc_domain_generic_chips() which creates a gc and
> adds it to gc_list. The driver later then calls irq_setup_generic_chip()
> which also initializes the gc and adds it to the gc_list() and this
> corrupts the list. Enable LIST_DEBUG and you see the kernel complain.
> This isn't required, irq_alloc_domain_generic_chips() did the init.
>
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>

Patch applied, adding Alan Tull's Tested-by.

Yours,
Linus Walleij
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