[evince/wip/hadess/fix-missing-pixbuf-loader] comics: Fix warning if page cannot be rendered

[Bastien Nocera <hadess src gnome org>]

commit ab02e54a338f20c3e214eb1cda0a10c6f7d19ce3
Author: Bastien Nocera <hadess hadess net>
Date:   Fri Aug 2 16:16:05 2019 +0200

    comics: Fix warning if page cannot be rendered
    
    If the system is badly configured and there's no pixbuf loader plugin
    available (and the system otherwise advertises it does have one
    available) then don't throw a warning, there will be more useful ones
    later.

 backend/comics/comics-document.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/backend/comics/comics-document.c b/backend/comics/comics-document.c
index 6583ade8..0ed372e1 100644
--- a/backend/comics/comics-document.c
+++ b/backend/comics/comics-document.c
@@ -558,7 +558,7 @@ comics_document_render (EvDocument      *document,
 
        pixbuf = comics_document_render_pixbuf (document, rc);
        surface = ev_document_misc_surface_from_pixbuf (pixbuf);
-       g_object_unref (pixbuf);
+       g_clear_object (&pixbuf);
 
        return surface;
 }