[goffice] rsm: fix reversed precondition

[Morten Welinder <mortenw src gnome org>]

commit ab32eab1f0cb412b553b56638fe7635bd8a89f6a
Author: Morten Welinder <terra gnome org>
Date:   Mon Dec 5 15:10:14 2011 -0500

    rsm: fix reversed precondition

 ChangeLog              |    7 ++++++-
 goffice/utils/go-rsm.c |    4 +++-
 2 files changed, 9 insertions(+), 2 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 8be5762..d90d058 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2011-12-05  Morten Welinder  <terra gnome org>
+
+	* goffice/utils/go-rsm.c (go_rsm_unregister_file): fix
+	precondition.
+
 2011-12-05  Jean Brefort  <jean brefort normalesup org>
 
 	* goffice/canvas/goc-group.c (goc_group_init): initialize the transform
@@ -22,7 +27,7 @@
 	(go_emf_polygon16), (go_emf_polyline16), (go_emf_polybezierto16),
 	(go_emf_polylineto16), (go_emf_polypolyline16),
 	(go_emf_polypolygon16): more work.
-	
+
 
 2011-12-04  Morten Welinder  <terra gnome org>
 
diff --git a/goffice/utils/go-rsm.c b/goffice/utils/go-rsm.c
index 5f2482b..bb912a8 100644
--- a/goffice/utils/go-rsm.c
+++ b/goffice/utils/go-rsm.c
@@ -40,6 +40,8 @@ _go_rsm_init (void)
 void
 _go_rsm_shutdown (void)
 {
+  if (debug)
+    g_printerr ("Shutting down with %d resources\n", g_hash_table_size (rsm));
   g_hash_table_destroy (rsm);
   rsm = NULL;
 }
@@ -64,7 +66,7 @@ void
 go_rsm_unregister_file (const char *id)
 {
   g_return_if_fail (id != NULL);
-  g_return_if_fail (g_hash_table_lookup (rsm, id) == NULL);
+  g_return_if_fail (g_hash_table_lookup (rsm, id) != NULL);
 
   if (debug)
     g_printerr ("Unregistering resource [%s]\n", id);