--- libaitrpc/src/builtin.c	2010/07/08 07:16:36	1.1.1.1.2.5
+++ libaitrpc/src/builtin.c	2010/07/08 09:18:51	1.1.1.1.2.6
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: builtin.c,v 1.1.1.1.2.5 2010/07/08 07:16:36 misho Exp $
+* $Id: builtin.c,v 1.1.1.1.2.6 2010/07/08 09:18:51 misho Exp $
 *
 *************************************************************************/
 #include "global.h"
@@ -159,12 +159,16 @@ rpcBLOBServerVars(rpc_func_t *call, int ic, rpc_val_t 
 	else
 		srv = call->func_parent;
 
+	pthread_mutex_lock(&srv->srv_blob.mtx);
 	for (i = 0, b = srv->srv_blob.blobs; b; i++, b = b->blob_next);
-	if (!(vals = rpc_srv_retValsCall(call, i)))
+	if (!(vals = rpc_srv_retValsCall(call, i))) {
+		pthread_mutex_unlock(&srv->srv_blob.mtx);
 		return -1;
+	}
 
 	for (b = srv->srv_blob.blobs, v = vals; b; b = b->blob_next)
 		RPC_SET_U32(v++, b->blob_var);
+	pthread_mutex_unlock(&srv->srv_blob.mtx);
 
 	return 0;
 }