perf/core fixes:

. The new perf_evsel__tp_sched_test 'perf test' broke the build by setting the
   'ret' variable but not using it, caught by newer gcc
   -Werror=unused-but-set-variable, fix from Namhyung Kim.
 
 . pevent_parse_event should return a proper PEVENT_ERRNO__ and call
   pevent_free_format on its failure path, fixes from Namhyung Kim.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core fixes from Arnaldo Carvalho de Melo:

 * The new perf_evsel__tp_sched_test 'perf test' broke the build by setting the
   'ret' variable but not using it, caught by newer gcc
   -Werror=unused-but-set-variable, fix from Namhyung Kim.

 * pevent_parse_event should return a proper PEVENT_ERRNO__ and call
   pevent_free_format on its failure path, fixes from Namhyung Kim.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

tools/lib/traceevent/event-parse.c

@@ -5044,8 +5044,10 @@ enum pevent_errno pevent_parse_event(struct pevent *pevent, const char *buf,
 	/* Add pevent to event so that it can be referenced */
 	event->pevent = pevent;
 
-	if (add_event(pevent, event))
+	if (add_event(pevent, event)) {
+		ret = PEVENT_ERRNO__MEM_ALLOC_FAILED;
 		goto event_add_failed;
+	}
 
 #define PRINT_ARGS 0
 	if (PRINT_ARGS && event->print_fmt.args)
@@ -5054,9 +5056,7 @@ enum pevent_errno pevent_parse_event(struct pevent *pevent, const char *buf,
 	return 0;
 
 event_add_failed:
-	free(event->system);
-	free(event->name);
-	free(event);
+	pevent_free_format(event);
 	return ret;
 }
 

tools/perf/builtin-test.c

@@ -1233,7 +1233,7 @@ static int perf_evsel__test_field(struct perf_evsel *evsel, const char *name,
 		ret = -1;
 	}
 
-	return 0;
+	return ret;
 }
 
 static int perf_evsel__tp_sched_test(void)
@@ -1286,7 +1286,7 @@ static int perf_evsel__tp_sched_test(void)
 	if (perf_evsel__test_field(evsel, "target_cpu", 4, true))
 		ret = -1;
 
-	return 0;
+	return ret;
 }
 
 static struct test {