On 04.05.2011 06:42, Kurt Van Dijck wrote:
> 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 <[email protected]>

Acked-by: Oliver Hartkopp <[email protected]>

> 
> diff --git a/net/can/af_can.c b/net/can/af_can.c
> index 5b52762..094fc53 100644
> --- 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;
>  }
>  
> --
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