net: annotate ->poll() instances

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index ae59826..449f62e 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -1107,7 +1107,7 @@ static int smc_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 	return rc;
 }
 
-static unsigned int smc_accept_poll(struct sock *parent)
+static __poll_t smc_accept_poll(struct sock *parent)
 {
 	struct smc_sock *isk;
 	struct sock *sk;
@@ -1126,7 +1126,7 @@ static unsigned int smc_accept_poll(struct sock *parent)
 	return 0;
 }
 
-static unsigned int smc_poll(struct file *file, struct socket *sock,
+static __poll_t smc_poll(struct file *file, struct socket *sock,
 			     poll_table *wait)
 {
 	struct sock *sk = sock->sk;