From 18fc31641925867c871bc75270ce642c039188d3 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Wed, 17 Jun 2009 18:02:10 -0700 Subject: [PATCH] NFS: Fix false error return from nfs_callback_up() if ipv6.ko is not available Clear "ret" if the error return from svc_create_xprt(AF_INET6) was -EAFNOSUPORT. Otherwise, callback start-up will succeed, but nfs_callback_up() will return -EAFNOSUPPORT anyway, and the first NFSv4 mount attempt after a reboot will fail. Bug introduced by commit f738f517 in 2.6.30-rc1. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust --- fs/nfs/callback.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c index a886e692ddd..6e3bd42c21c 100644 --- a/fs/nfs/callback.c +++ b/fs/nfs/callback.c @@ -127,7 +127,9 @@ int nfs_callback_up(void) nfs_callback_tcpport6 = ret; dprintk("NFS: Callback listener port = %u (af %u)\n", nfs_callback_tcpport6, PF_INET6); - } else if (ret != -EAFNOSUPPORT) + } else if (ret == -EAFNOSUPPORT) + ret = 0; + else goto out_err; #endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */