On 9/12/16 12:02 AM, Christophe JAILLET wrote:
> diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
> index abfbe492ebfe..795af25cf84c 100644
> --- a/net/ipv4/inet_diag.c
> +++ b/net/ipv4/inet_diag.c
> @@ -1134,7 +1134,6 @@ int inet_diag_handler_get_info(struct sk_buff *skb,
> struct sock *sk)
>
> handler = inet_diag_lock_handler(sk->sk_protocol);
> if (IS_ERR(handler)) {
> - inet_diag_unlock_handler(handler);
> nlmsg_cancel(skb, nlh);
> return PTR_ERR(handler);
> }
>
That call is needed. inet_diag_unlock_handler does not operate on the input arg
but a global mutex. Perhaps a better patch is to change
inet_diag_unlock_handler() to a void.