can: rename can_try_module_get to can_get_proto

can: rename can_try_module_get to can_get_proto

can_try_module_get does return a struct can_proto.
The name explains what is done in so much detail that a caller
may not notice that a struct can_proto is locked/unlocked.

Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/can/af_can.c b/net/can/af_can.c
index 5b52762..094fc53 100644 (file)
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -115,7 +115,7 @@ static void can_sock_destruct(struct sock *sk)
        skb_queue_purge(&sk->sk_receive_queue);
 }
 
-static const struct can_proto *can_try_module_get(int protocol)
+static const struct can_proto *can_get_proto(int protocol)
 {
        const struct can_proto *cp;
 
@@ -128,6 +128,11 @@ static const struct can_proto *can_try_module_get(int protocol)
        return cp;
 }
 
+static inline void can_put_proto(const struct can_proto *cp)
+{
+       module_put(cp->prot->owner);
+}
+
 static int can_create(struct net *net, struct socket *sock, int protocol,
                      int kern)
 {
@@ -143,7 +148,7 @@ static int can_create(struct net *net, struct socket *sock, int protocol,
        if (!net_eq(net, &init_net))
                return -EAFNOSUPPORT;
 
-       cp = can_try_module_get(protocol);
+       cp = can_get_proto(protocol);
 
 #ifdef CONFIG_MODULES
        if (!cp) {
@@ -160,7 +165,7 @@ static int can_create(struct net *net, struct socket *sock, int protocol,
                        printk(KERN_ERR "can: request_module "
                               "(can-proto-%d) failed.\n", protocol);
 
-               cp = can_try_module_get(protocol);
+               cp = can_get_proto(protocol);
        }
 #endif
 
@@ -195,7 +200,7 @@ static int can_create(struct net *net, struct socket *sock, int protocol,
        }
 
  errout:
-       module_put(cp->prot->owner);
+       can_put_proto(cp);
        return err;
 }