linux-kernel - Re: [PATCH][RESEND] tracepoint: Check if the probe has been registered

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Message-ID: <20081027154600.GO5704@elte.hu>
Date:	Mon, 27 Oct 2008 16:46:00 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH][RESEND] tracepoint: Check if the probe has been
	registered


* Frederic Weisbecker <fweisbec@...il.com> wrote:

> If we try to remove a probe that has not been already registered,
> the tracepoint_entry_remove_probe() function will dereference a NULL
> pointer.
> Check the probe before removing it to avoid crashes.
> 
> Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
> Acked-by: Steven Rostedt <srostedt@...hat.com>
> ---
>  kernel/tracepoint.c |    8 ++++++++
>  1 files changed, 8 insertions(+), 0 deletions(-)

applied to tip/tracing/urgent, thanks Frederic!

	Ingo
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