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Message-ID: <20110716173341.06f95d72@endymion.delvare>
Date: Sat, 16 Jul 2011 17:33:41 +0200
From: Jean Delvare <khali@...ux-fr.org>
To: Stephen Rothwell <sfr@...b.auug.org.au>
Cc: linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: linux-next: build failure after merge of the jdelvare-hwmon
tree
Hi Stephen,
On Sat, 16 Jul 2011 17:06:01 +1000, Stephen Rothwell wrote:
> After merging the jdelvare-hwmon tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
>
> drivers/hwmon/max1111.c: In function 'max1111_remove':
> drivers/hwmon/max1111.c:213:2: error: incompatible type for argument 1 of 'mutex_destroy'
> include/linux/mutex-debug.h:21:13: note: expected 'struct mutex *' but argument is of type 'struct mutex'
>
> Caused by commit d2fbca2996a8 ("hwmon: (max1111) Fix race condition
> causing NULL pointer exception"). Missing '&'?
Oh, right, good catch. It went unnoticed so far because mutex_destroy
resolves to nothing unless CONFIG_DEBUG_MUTEXES=y. I plan to submit a
patch turning the empty implementation of mutex_destroy to an inline
function, so that this kind of problem gets caught earlier.
> I have used the jdelvare-hwmon tree from next-20110707 for today.
Problem is fixed now, thanks.
--
Jean Delvare
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