linux-kernel - Re: [PATCH -tip] sched: fix using uninilialzed rq in task_delta

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Message-ID: <20080930085850.GA27452@elte.hu>
Date:	Tue, 30 Sep 2008 10:58:50 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
Cc:	linux-kernel@...r.kernel.org, Frank Mayhar <fmayhar@...gle.com>
Subject: Re: [PATCH -tip] sched: fix using uninilialzed rq in
	task_delta_exec()


* Hiroshi Shimamoto <h-shimamoto@...jp.nec.com> wrote:

> From: Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
> 
> compiler warnings;
> 
>   CC      kernel/sched.o
> kernel/sched.c: In function 'task_delta_exec':
> kernel/sched.c:4055: warning: unused variable 'flags'
> kernel/sched.c:4054: warning: 'rq' is used uninitialized in this function
> 
> calling task_delta_exec() may cause unexpected pointer access.

heh, just fixed that as well, latest tip/master should have the fix.

Have you seen any weirdness due to this uninitialized variable?

	Ingo
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