Removed a surplus semicolon of previous changeset

libisofs/tree.c

@@ -1232,7 +1232,7 @@ int iso_tree_get_node_of_block(IsoImage *image, IsoDir *dir, uint32_t block,
 ex:
     if (sections != NULL)
         free(sections);
-    if (iter != NULL);
+    if (iter != NULL)
         iso_dir_iter_free(iter);
     return ret;
 }