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| H A D | tracepoint.c | diff 09933a108e6730a464a1ab676c9decc11aee0edc Wed Mar 18 17:48:56 CET 2009 Jaswinder Singh Rajput <jaswinder@kernel.org> tracing: fix oops in tracepoint_update_probe_range()
Change this crash:
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffff8107d4de>] tracepoint_update_probe_range+0x1f/0x9b
PGD 13d5fb067 PUD 13d688067 PMD 0
Oops: 0000 [#1] SMP
To a more debuggable WARN_ONCE().
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <1237394936.3132.1.camel@localhost.localdomain>
[ moved the check outside the lock and added a WARN_ON(). ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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