remove memory leaks

src/xspice/evt/evtplot.c

@@ -142,8 +142,10 @@ struct dvec *EVTfindvec(
     }
   }
 
-  if(! found)
+  if(! found) {
+    tfree(name);
     return(NULL);
+  }
 
   /* Get the UDN type index */
   udn_index = node_table[i]->udn_index;

src/xspice/mif/mifdelete.c

@@ -134,8 +134,11 @@ MIFdelete(GENinstance *gen_inst)
         }
         /* Free the basic port structure allocated in MIFget_port */
         num_port = here->conn[i]->size;
-        for (j = 0; j < num_port; j++)
+        for (j = 0; j < num_port; j++) {
+            /* Memory allocated in mif_inp2.c */
+            FREE(here->conn[i]->port[j]->type_str);
             FREE(here->conn[i]->port[j]);
+        }
         FREE(here->conn[i]->port);
     }