Bluetooth: fix checkpatch errors in af_bluetooth.c

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index c258027..88af9eb 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -397,7 +397,7 @@
 	return 0;
 }
 
-unsigned int bt_sock_poll(struct file * file, struct socket *sock, poll_table *wait)
+unsigned int bt_sock_poll(struct file *file, struct socket *sock, poll_table *wait)
 {
 	struct sock *sk = sock->sk;
 	unsigned int mask = 0;