[dia] [scan-build] Argument with 'nonnull' attribute passed null

[Hans Breuer <hans src gnome org>]

commit 90b7b5894d5018d5c4b1f0c260892717e1deb020
Author: Hans Breuer <hans breuer org>
Date:   Sun Dec 6 16:11:16 2009 +0100

    [scan-build] Argument with 'nonnull' attribute passed null

 objects/SISSI/sissi.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/objects/SISSI/sissi.c b/objects/SISSI/sissi.c
index 8c24017..50ddbf1 100644
--- a/objects/SISSI/sissi.c
+++ b/objects/SISSI/sissi.c
@@ -558,8 +558,8 @@ property_other_read(DataNode composite)
   if (attr_node != NULL)
     properties_others->description = data_string( attribute_first_data(attr_node) );
   
-  if (!strcmp(properties_others->description,""))
-  	properties_others->description=NULL;
+  if (properties_others->description!=NULL && !strcmp(properties_others->description,""))
+    properties_others->description=NULL;
 	
   return properties_others;
 }