[gtk+/gtk-style-context] GtkStyle: Do not warn if attach count == 0

[Carlos Garnacho <carlosg src gnome org>]

commit 618b5bb8f09b3ad1964e77f343dd50ed4008dd36
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Nov 24 01:11:26 2010 +0100

    GtkStyle: Do not warn if attach count == 0
    
    This is going go happen more and more often now, as realize handlers start
    removing the gtk_widget_style_attach() calls.

 gtk/gtkstyle.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkstyle.c b/gtk/gtkstyle.c
index 1d07ddf..cdd1249 100644
--- a/gtk/gtkstyle.c
+++ b/gtk/gtkstyle.c
@@ -954,8 +954,10 @@ void
 gtk_style_detach (GtkStyle *style)
 {
   g_return_if_fail (GTK_IS_STYLE (style));
-  g_return_if_fail (style->attach_count > 0);
-  
+
+  if (style->attach_count == 0)
+    return;
+
   style->attach_count -= 1;
   if (style->attach_count == 0)
     {