[PATCH] tracing: remove the unused value assignment in test_create_synth_event

[xiakaixu1987]

From: Kaixu Xia <kaixuxia@xxxxxxxxxxx>

The value of variable ret is overwritten on the delete branch in the
test_create_synth_event(), so here the value assignment is useless.
Remove it.

Reported-by: Tosk Robot <tencent_os_robot@xxxxxxxxxxx>
Signed-off-by: Kaixu Xia <kaixuxia@xxxxxxxxxxx>
---
 kernel/trace/synth_event_gen_test.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/kernel/trace/synth_event_gen_test.c b/kernel/trace/synth_event_gen_test.c
index edd912cd14aa..c76b4c189560 100644
--- a/kernel/trace/synth_event_gen_test.c
+++ b/kernel/trace/synth_event_gen_test.c
@@ -276,10 +276,8 @@ static int __init test_create_synth_event(void)
 	 */
 	create_synth_test = trace_get_event_file(NULL, "synthetic",
 						 "create_synth_test");
-	if (IS_ERR(create_synth_test)) {
-		ret = PTR_ERR(create_synth_test);
+	if (IS_ERR(create_synth_test))
 		goto delete;
-	}
 
 	/* Enable the event or you won't see anything */
 	ret = trace_array_set_clr_event(create_synth_test->tr,
-- 
2.20.0