[frogr] Add missing null check

[Mario Sanchez Prada <msanchez src gnome org>]

commit 77e86234d77b828a571af75fcd34d0a0eac0efb2
Author: Mario Sanchez Prada <msanchez gnome org>
Date:   Thu Jan 16 21:51:51 2014 +0000

    Add missing null check

 src/frogr-controller.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/src/frogr-controller.c b/src/frogr-controller.c
index f976dd8..3782bb6 100644
--- a/src/frogr-controller.c
+++ b/src/frogr-controller.c
@@ -2991,8 +2991,11 @@ frogr_controller_load_pictures (FrogrController *self,
 
   priv = FROGR_CONTROLLER_GET_PRIVATE (self);
 
-  max_picture_filesize = frogr_account_get_max_picture_filesize (priv->account);
-  max_video_filesize = frogr_account_get_max_video_filesize (priv->account);
+  if (priv->account)
+    {
+      max_picture_filesize = frogr_account_get_max_picture_filesize (priv->account);
+      max_video_filesize = frogr_account_get_max_video_filesize (priv->account);
+    }
 
   loader = frogr_file_loader_new_from_uris (fileuris, max_picture_filesize, max_video_filesize);