linux-kernel - Re: [PATCH] mfd: ti_am335x_tscadc: avoid possible deadlock of reg

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Message-ID: <20131022171359.GC2620@lee--X1>
Date:	Tue, 22 Oct 2013 18:13:59 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:	Samuel Ortiz <sameo@...ux.intel.com>, linux-kernel@...r.kernel.org,
	Zubair Lutfullah <zubair.lutfullah@...il.com>,
	Felipe Balbi <balbi@...com>, kishon@...com
Subject: Re: [PATCH] mfd: ti_am335x_tscadc: avoid possible deadlock of
 reg_lock

On Tue, 22 Oct 2013, Sebastian Andrzej Siewior wrote:

> Since the addition of continuous sampling mode and shared irq support,
> the reg_lock lock can be taken with and without interrupts. This patch
> uses the *_irq* variant which should be used in order to avaoid a deadlock.
> 
> Cc: Zubair Lutfullah <zubair.lutfullah@...il.com>
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
> ---
>  drivers/mfd/ti_am335x_tscadc.c | 12 ++++++++----
>  1 file changed, 8 insertions(+), 4 deletions(-)

Good catch. Applied, thanks.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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