perf probe: Fix coredump introduced by probe module option
authorJovi Zhang <bookjovi@gmail.com>
Mon, 25 Jul 2011 14:08:08 +0000 (22:08 +0800)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 8 Aug 2011 12:35:41 +0000 (09:35 -0300)
commitce27a443d17dccf613079a7147cf0d220bc4ec82
treec9fecd9884b167a2c4bdae80653d919b2ba6474e
parent00894ce9b85887caa0c16e18757004b9cc9f64cf
perf probe: Fix coredump introduced by probe module option

perf will coredump if the user doesn't give the "-m" option in probe
command, this patch fixes it.

[root@localhost perf]# ./perf probe --add='PROBE'
Segmentation fault (core dumped)

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1311602888-2389-1-git-send-email-bookjovi@gmail.com
Signed-off-by: Jovi Zhang <bookjovi@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/probe-event.c