linux-kernel - Re: [PATCH] gpio: pcf857x: get rid of slock spinlock

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Message-ID: <CACRpkdbjJN1KbBjT4=tL0kBjJ8Y=5cd4LDrPNN6xJkjCqbNnUQ@mail.gmail.com>
Date:	Thu, 16 Jul 2015 10:45:26 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Grygorii Strashko <grygorii.strashko@...com>
Cc:	Alexandre Courbot <gnurou@...il.com>, Sekhar Nori <nsekhar@...com>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>
Subject: Re: [PATCH] gpio: pcf857x: get rid of slock spinlock

On Thu, Jun 25, 2015 at 5:18 PM, Grygorii Strashko
<grygorii.strashko@...com> wrote:

> The spinlock 'slock' is used now to protect pcf857x_irq() from itself
> which is unnecessary (especially after switching to use threaded
> IRQs). Hence, remove it and use mutex to protect device data in IRQ
> handler.
>
> Cc: Geert Uytterhoeven <geert+renesas@...der.be>
> Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>

No comments, so patch applied.

Yours,
Linus Walleij
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