From 7e990a51264cb0c1400155ba72d56f5158ccf919 Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Tue, 15 Dec 2009 10:31:21 -0500 Subject: [PATCH] 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 Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Steven Rostedt Cc: Jim Keniston Cc: Ananth N Mavinakayanahalli Cc: Christoph Hellwig Cc: Frank Ch. Eigler Cc: Jason Baron Cc: K.Prasad Cc: Peter Zijlstra Cc: Srikar Dronamraju Cc: systemtap Cc: DLE Cc: Frederic Weisbecker LKML-Reference: <20091215153121.17436.34674.stgit@dhcp-100-2-132.bos.redhat.com> Signed-off-by: Ingo Molnar --- tools/perf/util/probe-event.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index add379c55c36..1653a62a478e 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) { -- 2.20.1