[PATCH] nfsd4_lock() returns bogus values to clients

missing nfserrno() in default case of a switch by return value of
posix_lock_file(); as the result we send negative host-endian to clients that
expect positive network-endian, preferably mentioned in RFC...  BTW, that case
is not impossible - posix_lock_file() can return -ENOLCK and we do not handle
that one explicitly.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/nfsd/nfs4state.c

@@ -2761,7 +2761,10 @@ nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock
 		goto conflicting_lock;
 	case (EDEADLK):
 		status = nfserr_deadlock;
+		dprintk("NFSD: nfsd4_lock: posix_lock_file() failed! status %d\n",status);
+		goto out;
 	default:        
+		status = nfserrno(status);
 		dprintk("NFSD: nfsd4_lock: posix_lock_file() failed! status %d\n",status);
 		goto out;
 	}