From: ye xingchen <ye.xingchen@zte.com.cn>

Return the value simple_read_from_buffer()  directly instead of storing it
 in another redundant variable.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
---
 kernel/trace/trace_events.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 0356cae0cf74..9e4dd1720fff 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -1435,7 +1435,6 @@ system_enable_read(struct file *filp, char __user *ubuf, size_t cnt,
 	struct trace_array *tr = dir->tr;
 	char buf[2];
 	int set = 0;
-	int ret;
 
 	mutex_lock(&event_mutex);
 	list_for_each_entry(file, &tr->events, list) {
@@ -1465,9 +1464,7 @@ system_enable_read(struct file *filp, char __user *ubuf, size_t cnt,
 	buf[0] = set_to_char[set];
 	buf[1] = '\n';
 
-	ret = simple_read_from_buffer(ubuf, cnt, ppos, buf, 2);
-
-	return ret;
+	return simple_read_from_buffer(ubuf, cnt, ppos, buf, 2);
 }
 
 static ssize_t
-- 
2.25.1