vlib: avoid use of vector of voids

Type: fix
Change-Id: I76e28854db8a1e9134c816c0c5d81b031dc4e27d
Signed-off-by: Damjan Marion <damarion@cisco.com>
diff --git a/src/vlib/node_funcs.h b/src/vlib/node_funcs.h
index 147d5eb..b864fec 100644
--- a/src/vlib/node_funcs.h
+++ b/src/vlib/node_funcs.h
@@ -835,7 +835,7 @@
 				  uword n_data_elts, uword n_data_elt_bytes)
 {
   uword p_flags, add_to_pending, delete_from_wheel;
-  void *data_to_be_written_by_caller;
+  u8 *data_to_be_written_by_caller;
 
   ASSERT (n->type == VLIB_NODE_TYPE_PROCESS);
 
@@ -845,7 +845,7 @@
 
   /* Resize data vector and return caller's data to be written. */
   {
-    void *data_vec = p->pending_event_data_by_type_index[t];
+    u8 *data_vec = p->pending_event_data_by_type_index[t];
     uword l;
 
     if (!data_vec && vec_len (nm->recycled_event_data_vectors))