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

From: Ingo Molnar
Date: Fri Oct 10 2008 - 10:00:49 EST



* Frederic Weisbecker <fweisbec@xxxxxxxxx> 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@xxxxxxxxx>
> ---
> 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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