NFS: Return a real error code from mount(2)

Don't filter the return code from the in-kernel rpcbind or NFS mount
clients. Return the real error code so that callers of the new NFS
text-based mount API can apply a useful retry strategy.

Signed-off-by: Chuck Lever <[e-mail]>
Signed-off-by: Trond Myklebust <[e-mail]>

fs/nfs/super.c

···
 
 		status = nfs_try_mount(&args, mntfh);
 		if (status)
-			return -EINVAL;
+			return status;
 
 		/*
 		 * Translate to nfs_mount_data, which nfs_fill_super