perf probe: Check the result of e_snprintf()

[linux-2.6.git] / tools / perf / util / probe-event.c

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index add379c..1653a62 100644 (file)
--- 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) {