buf is assigned first, so it does not need to initialize the assignment.

Signed-off-by: Li kunyu <kunyu@nfschina.com>
---
 kernel/relay.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/relay.c b/kernel/relay.c
index a80fa01042e9..83fe0325cde1 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -375,7 +375,7 @@ static struct dentry *relay_create_buf_file(struct rchan *chan,
  */
 static struct rchan_buf *relay_open_buf(struct rchan *chan, unsigned int cpu)
 {
- 	struct rchan_buf *buf = NULL;
+	struct rchan_buf *buf;
 	struct dentry *dentry;
 
  	if (chan->is_global)
-- 
2.18.2