diff options
| author | Masami Hiramatsu <mhiramat@redhat.com> | 2010-02-18 13:16:52 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-02-22 11:42:27 +0100 |
| commit | 388c3aab5d4f1b0bbfe2d5f47e7cd681866bc573 (patch) | |
| tree | 99024d3b3807219c3713babcf2077f59b7847475 | |
| parent | 326264a02448b0ac51f78f178b78e830aa077a0b (diff) | |
| download | op-kernel-dev-388c3aab5d4f1b0bbfe2d5f47e7cd681866bc573.zip op-kernel-dev-388c3aab5d4f1b0bbfe2d5f47e7cd681866bc573.tar.gz | |
perf probe: Init struct probe_point and set counter correctly
Clear struct probe_point before using it in
show_perf_probe_events(), and set pp->found counter correctly in
synthesize_perf_probe_point(). Without this initialization,
clear_probe_point() will free random addresses.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
LKML-Reference: <20100218181652.26547.57790.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | tools/perf/util/probe-event.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index 29465d4..fde17b0 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -272,6 +272,7 @@ int synthesize_perf_probe_point(struct probe_point *pp) int ret; pp->probes[0] = buf = zalloc(MAX_CMDLEN); + pp->found = 1; if (!buf) die("Failed to allocate memory by zalloc."); if (pp->offset) { @@ -294,6 +295,7 @@ int synthesize_perf_probe_point(struct probe_point *pp) error: free(pp->probes[0]); pp->probes[0] = NULL; + pp->found = 0; } return ret; } @@ -455,6 +457,7 @@ void show_perf_probe_events(void) struct strlist *rawlist; struct str_node *ent; + memset(&pp, 0, sizeof(pp)); fd = open_kprobe_events(O_RDONLY, 0); rawlist = get_trace_kprobe_event_rawlist(fd); close(fd); |
