[gnome-video-arcade] history: Fix history.dat parsing.

[Matthew Barnes <mbarnes src gnome org>]

commit 8b47af2e2568a07db9f7addb4591bcdb8eb3246d
Author: Matthew Barnes <mbarnes redhat com>
Date:   Mon Jul 27 16:58:49 2015 -0400

    history: Fix history.dat parsing.
    
    The history.dat file now contains data for both MAME and MESS.  The MAME
    entries still start with $info tags but the MESS entries start with tags
    named after systems like $snes and $segacd.  Ignore the MESS entries.

 src/gva-history.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/src/gva-history.c b/src/gva-history.c
index c5cf77b..f354e1c 100644
--- a/src/gva-history.c
+++ b/src/gva-history.c
@@ -142,11 +142,13 @@ gva_history_init (GError **error)
                 }
                 else if (g_str_has_prefix (buffer->str, "$<a"))
                 {
-                        history_process_link (entry, buffer->str + 1);
+                        if (entry != NULL)
+                                history_process_link (entry, buffer->str + 1);
                 }
                 else if (g_str_has_prefix (buffer->str, "$bio"))
                 {
-                        entry->offset = offset;
+                        if (entry != NULL)
+                                entry->offset = offset;
                 }
         }