2 files changed, 3 insertions, 0 deletions
diff --git a/src/mm-callback-info.c b/src/mm-callback-info.c
index 0aca55da..089f0b73 100644
--- a/src/mm-callback-info.c
+++ b/src/mm-callback-info.c
@@ -67,6 +67,7 @@ callback_info_done (gpointer user_data)
     MMCallbackInfo *info = (MMCallbackInfo *) user_data;
 
     info->pending_id = 0;
+    info->called = TRUE;
 
     if (info->invoke_fn && info->callback)
         info->invoke_fn (info);
@@ -94,6 +95,7 @@ mm_callback_info_schedule (MMCallbackInfo *info)
 {
     g_return_if_fail (info != NULL);
     g_return_if_fail (info->pending_id == 0);
+    g_return_if_fail (info->called == FALSE);
 
     info->pending_id = g_idle_add_full (G_PRIORITY_DEFAULT_IDLE, callback_info_do, info, callback_info_done);
 }
diff --git a/src/mm-callback-info.h b/src/mm-callback-info.h
index 591ac86e..783e1282 100644
--- a/src/mm-callback-info.h
+++ b/src/mm-callback-info.h
@@ -28,6 +28,7 @@ struct _MMCallbackInfo {
 
     MMCallbackInfoInvokeFn invoke_fn;
     GCallback callback;
+    gboolean called;
 
     gpointer user_data;
     GError *error;