linux-kernel - Re: [PATCH] perf_counter: fix double list iteration

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Message-ID: <4A7B05B1.5000807@inria.fr>
Date:	Thu, 06 Aug 2009 18:32:49 +0200
From:	Brice Goglin <Brice.Goglin@...ia.fr>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	Ingo Molnar <mingo@...e.hu>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] perf_counter: fix double list iteration

Tested-by: Brice Goglin <Brice.Goglin@...ia.fr>

Thanks!


Peter Zijlstra wrote:
> ---
> Subject: perf_counter: fix double list iteration
>
> A silly copy-paste resulted in a messed up iteration which would cause
> an OOPS.
>
> Reported-by: Brice Goglin <Brice.Goglin@...ia.fr>
> Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> ---
>  kernel/perf_counter.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c
> index 06d210c..6da7611 100644
> --- a/kernel/perf_counter.c
> +++ b/kernel/perf_counter.c
> @@ -1104,7 +1104,7 @@ static void perf_counter_sync_stat(struct perf_counter_context *ctx,
>  		__perf_counter_sync_stat(counter, next_counter);
>  
>  		counter = list_next_entry(counter, event_entry);
> -		next_counter = list_next_entry(counter, event_entry);
> +		next_counter = list_next_entry(next_counter, event_entry);
>  	}
>  }
>  
>
>   

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