1 files changed, 17 insertions, 1 deletions

diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index f43ecd61fa8..0f0e77f2012 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -988,6 +988,7 @@ static ssize_t __write_ports_delfd(char *buf)
 static ssize_t __write_ports_addxprt(char *buf)
 {
         char transport[16];
+        struct svc_xprt *xprt;
         int port, err;
 
         if (sscanf(buf, "%15s %4u", transport, &port) != 2)
@@ -1003,8 +1004,23 @@ static ssize_t __write_ports_addxprt(char *buf)
         err = svc_create_xprt(nfsd_serv, transport,
                                 PF_INET, port, SVC_SOCK_ANONYMOUS);
         if (err < 0)
-                return err;
+                goto out_err;
+
+        err = svc_create_xprt(nfsd_serv, transport,
+                                PF_INET6, port, SVC_SOCK_ANONYMOUS);
+        if (err < 0 && err != -EAFNOSUPPORT)
+                goto out_close;
         return 0;
+out_close:
+        xprt = svc_find_xprt(nfsd_serv, transport, PF_INET, port);
+        if (xprt != NULL) {
+                svc_close_xprt(xprt);
+                svc_xprt_put(xprt);
+        }
+out_err:
+        /* Decrease the count, but don't shut down the service */
+        nfsd_serv->sv_nrthreads--;
+        return err;
 }
 
 /*