Frederic Weisbecker f66af459a9 tracepoint: check if the probe has been registered
Impact: fix kernel crash that can trigger during tracing

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@gmail.com>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Acked-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-27 16:45:46 +01:00
..
2008-10-27 11:31:58 +01:00
2008-10-26 09:38:17 -07:00
2008-10-16 11:21:30 -07:00
2008-09-14 16:25:35 +02:00
2008-08-13 12:55:10 +02:00
2008-09-02 19:21:40 -07:00
2008-10-20 08:52:39 -07:00
2008-10-21 15:59:53 +02:00
2008-10-16 11:21:31 -07:00
2008-10-16 11:21:51 -07:00
2008-10-16 11:21:47 -07:00
2008-10-16 11:21:31 -07:00