1 files changed, 12 insertions, 5 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
index 3145b0f1835c..2ad7d4b501cc 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
@@ -38,11 +38,18 @@ cnt_trace() {
 
 test_event_enabled() {
     val=$1
+    check_times=10		# wait for 10 * SLEEP_TIME at most
 
-    e=`cat $EVENT_ENABLE`
-    if [ "$e" != $val ]; then
-	fail "Expected $val but found $e"
-    fi
+    while [ $check_times -ne 0 ]; do
+	e=`cat $EVENT_ENABLE`
+	if [ "$e" = $val ]; then
+	    return 0
+	fi
+	sleep $SLEEP_TIME
+	check_times=$((check_times - 1))
+    done
+
+    fail "Expected $val but found $e"
 }
 
 run_enable_disable() {
@@ -85,7 +92,7 @@ run_enable_disable() {
 	echo $check_disable > $EVENT_ENABLE
     done
     sleep $SLEEP_TIME
-    echo " make sure it's still works"
+    echo " make sure it still works"
     test_event_enabled $check_enable_star
 
     reset_ftrace_filter