[grilo-plugins] tmdb: Fix warning in g_object_ref() assignment

[Bastien Nocera <hadess src gnome org>]

commit b1ae7098ee6b22480d8fe11d343a2150ff1414ee
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Apr 18 17:58:54 2018 +0200

    tmdb: Fix warning in g_object_ref() assignment
    
    grilo-plugins/src/tmdb/grl-tmdb.c: In function ‘grl_tmdb_source_resolve’:
    grilo-plugins/src/tmdb/grl-tmdb.c:1346:17: warning: assignment to ‘GrlTmdbSource *’ {aka ‘struct 
_GrlTmdbSource *’} from incompatible pointer type ‘GrlSource *’ {aka ‘struct _GrlSource *’} 
[-Wincompatible-pointer-types]
       closure->self = g_object_ref (source);
                     ^

 src/tmdb/grl-tmdb.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/tmdb/grl-tmdb.c b/src/tmdb/grl-tmdb.c
index afe741a..df9b289 100644
--- a/src/tmdb/grl-tmdb.c
+++ b/src/tmdb/grl-tmdb.c
@@ -1343,7 +1343,7 @@ grl_tmdb_source_resolve (GrlSource *source,
   GRL_DEBUG ("grl_tmdb_source_resolve");
 
   closure = g_slice_new0 (ResolveClosure);
-  closure->self = g_object_ref (source);
+  closure->self = g_object_ref (self);
   closure->rs = rs;
   closure->pending_requests = g_queue_new ();
   closure->keys = g_hash_table_new (g_direct_hash, g_direct_equal);