sunrpc: Don't return NULL from rpcb_create

> The reason for this is in the future, we may want to support additional
> address family types.  We should, therefore, ensure that every piece of
> code that is sensitive to address families fail in some orderly manner
> to let developers know where a change is needed.

Makes sense. I was under impression, that AF-s other than INET are not
cared about at all :(

Here's a fixed version of the patch.

Log:

Its callers check for ERR_PTR.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index 83af38df3267..1ef2d417af4e 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -249,7 +249,7 @@ static struct rpc_clnt *rpcb_create(char *hostname, struct sockaddr *srvaddr,
                 ((struct sockaddr_in6 *)srvaddr)->sin6_port = htons(RPCBIND_PORT);
                 break;
         default:
-                return NULL;
+                return ERR_PTR(-EAFNOSUPPORT);
         }
 
         return rpc_create(&args);