xml/nolibxml: better handle parsing failure at the beginning of XML d…

…iffs Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr>
open-mpi · Sep 12, 2018 · 577f7fd · 577f7fd
1 parent 43d700b
commit 577f7fd
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/hwloc/topology-xml-nolibxml.c b/hwloc/topology-xml-nolibxml.c
@@ -502,7 +502,7 @@ hwloc_nolibxml_import_diff(struct hwloc__xml_import_state_s *state,
   ret = hwloc__nolibxml_import_find_child(state, &childstate, &tag);
   if (ret < 0)
     goto out_with_buffer;
-  if (strcmp(tag, "topologydiff"))
+  if (!tag || strcmp(tag, "topologydiff"))
     goto out_with_buffer;
 
   while (1) {