[glib] gtester: only remove source if not already dead

[Dan Winship <danw src gnome org>]

commit a4bcd3e65aa580fb23bca6e1b09f62dff5837237
Author: Ryan Lortie <desrt desrt ca>
Date:   Wed Oct 23 14:17:48 2013 -0400

    gtester: only remove source if not already dead
    
    Don't attempt to g_source_remove() a source for which we already returned FALSE
    from the handler.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=710724

 glib/gtester.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/glib/gtester.c b/glib/gtester.c
index 12f7f1a..507742f 100644
--- a/glib/gtester.c
+++ b/glib/gtester.c
@@ -421,7 +421,9 @@ launch_test_binary (const char *binary,
       loop_pending = g_main_context_pending (NULL);
     }
 
-  g_source_remove (child_report_cb_id);
+  if (subtest_io_pending)
+    g_source_remove (child_report_cb_id);
+
   close (report_pipe[0]);
   g_test_log_buffer_free (tlb);