knfds: map null socket to SOCK_STREAM in svcauth_unix

The ip_map_cached_put routine looks in the sk_sock structure to determine the connection type. This change maps a null socket (RMDA transport) to SOCK_STREAM.

---

 net/sunrpc/svcauth_unix.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

index 2bd23ea..4d6bba0 100644
@@ -411,7 +411,7 @@ ip_map_cached_put(struct svc_rqst *rqstp
 	struct svc_sock *svsk = rqstp->rq_sock;
 
 	spin_lock_bh(&svsk->sk_defer_lock);
-	if (svsk->sk_sock->type == SOCK_STREAM &&
+	if ((svsk->sk_sock==NULL || svsk->sk_sock->type == SOCK_STREAM) &&
 	    svsk->sk_info_authunix == NULL) {
 		/* newly cached, keep the reference */
 		svsk->sk_info_authunix = ipm;

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