[gobject-introspection] girnode: Fix a NULL pointer defer ence if a namespace can’t be found

[Philip Withnall <pwithnall src gnome org>]

commit 6838e9313ad70781ac1316a05babbbf724ecfccc
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Wed Nov 6 11:37:50 2013 +0000

    girnode: Fix a NULL pointer deference if a namespace can’t be found
    
    https://bugzilla.gnome.org/show_bug.cgi?id=711541

 girepository/girnode.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/girepository/girnode.c b/girepository/girnode.c
index afb71e5..4361474 100644
--- a/girepository/girnode.c
+++ b/girepository/girnode.c
@@ -1151,6 +1151,10 @@ _g_ir_find_node (GIrTypelibBuild  *build,
       target_name = names[1];
     }
 
+  /* find_namespace() may return NULL. */
+  if (target_module == NULL)
+      goto done;
+
   for (l = target_module->entries; l; l = l->next)
     {
       GIrNode *node = (GIrNode *)l->data;
@@ -1162,6 +1166,7 @@ _g_ir_find_node (GIrTypelibBuild  *build,
        }
     }
 
+done:
   g_strfreev (names);
 
   return return_node;