linux-kernel - Re: [PATCH 2/6] tracepoint: Check if the probe has been registered

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Date:	Fri, 10 Oct 2008 16:00:23 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	Linux-Kernel <linux-kernel@...r.kernel.org>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH 2/6] 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>
> ---
>  kernel/tracepoint.c |    8 ++++++++
>  1 files changed, 8 insertions(+), 0 deletions(-)

applied to tip/tracing/tracepoints, thanks Frederic!

Mathieu, Steve, any objections/observations?

	Ingo
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