[dia] [scan-build] Null dereference (not really)

[Hans Breuer <hans src gnome org>]

commit 958d2fcfbe6a5b54fdaf65c8db15236fcdba203a
Author: Hans Breuer <hans breuer org>
Date:   Sun Dec 13 14:16:02 2009 +0100

    [scan-build] Null dereference (not really)
    
    Document create_dialog() making a valid dialog
    pointer by g_assert() to silence scan-build.

 app/defaults.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/app/defaults.c b/app/defaults.c
index a3a2e07..d01f171 100644
--- a/app/defaults.c
+++ b/app/defaults.c
@@ -119,6 +119,7 @@ defaults_show(DiaObjectType *objtype, gpointer user_data)
   
   if (dialog == NULL)
     create_dialog();
+  g_assert(dialog != NULL); /* valid by create_dialog() */
 
   if ((objtype==NULL) || (defaults == NULL)) { 
     /* No defaults or no object */