linux-kernel - Re: [PATCH v2 7/7] LPC32xx: clock.c: Fix mutex lock issues

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Message-ID: <20120131102740.GI2471@pengutronix.de>
Date:	Tue, 31 Jan 2012 11:27:40 +0100
From:	Wolfram Sang <w.sang@...gutronix.de>
To:	Roland Stigge <stigge@...com.de>
Cc:	bangaragiri.g@....com, srinivas.bakki@....com,
	sundarapandian.andithevar@....com, linus.walleij@...aro.org,
	linux-kernel@...r.kernel.org, kevin.wells@....com,
	grant.likely@...retlab.ca, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 7/7] LPC32xx: clock.c: Fix mutex lock issues

On Mon, Jan 30, 2012 at 05:02:06PM +0100, Roland Stigge wrote:
> This patch fixes the mutex issue in clock.c, as done in Kevin Wells' original
> driver update:
> 
> In some cases, the clock drivers could grab a mutex twice in an improper
> context. This patch changes the mutex mechanism to a simple irq lock/unlock
> mechanism and removes un-needed locks from some functions.
> 
> (See also git.lpclinux.com)
> 
> Signed-off-by: Roland Stigge <stigge@...com.de>

Tested-by: Wolfram Sang <w.sang@...gutronix.de>

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