Commit-ID: 7e990a51264cb0c1400155ba72d56f5158ccf919
Gitweb: http://git.kernel.org/tip/7e990a51264cb0c1400155ba72d56f5158ccf919
Author: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
AuthorDate: Tue, 15 Dec 2009 10:31:21 -0500
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Tue, 15 Dec 2009 20:22:00 +0100
perf probe: Check the result of e_snprintf()
Fix show_perf_probe_event() to check the result of e_snprintf().
Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Jim Keniston <jkenisto@xxxxxxxxxx>
Cc: Ananth N Mavinakayanahalli <ananth@xxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Cc: Frank Ch. Eigler <fche@xxxxxxxxxx>
Cc: Jason Baron <jbaron@xxxxxxxxxx>
Cc: K.Prasad <prasad@xxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Srikar Dronamraju <srikar@xxxxxxxxxxxxxxxxxx>
Cc: systemtap <systemtap@xxxxxxxxxxxxxxxxxx>
Cc: DLE <dle-develop@xxxxxxxxxxxxxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
LKML-Reference: <20091215153121.17436.34674.stgit@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
tools/perf/util/probe-event.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index add379c..1653a62 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -385,10 +385,12 @@ static void clear_probe_point(struct probe_point *pp)
static void show_perf_probe_event(const char *group, const char *event,
const char *place, struct probe_point *pp)
{
- int i;
+ int i, ret;
char buf[128];
- e_snprintf(buf, 128, "%s:%s", group, event);
+ ret = e_snprintf(buf, 128, "%s:%s", group, event);
+ if (ret < 0)
+ die("Failed to copy event: %s", strerror(-ret));
printf(" %-40s (on %s", buf, place);
if (pp->nr_args > 0) {
--
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