[tracker/tracker-0.14] tracker-extract-playlist: Don't error when to_metadata hash table is NULL

[Martyn James Russell <mr src gnome org>]

commit 6eecbbda4b1e4c0c0f1873f7555d38af72c28720
Author: Martyn Russell <martyn lanedo com>
Date:   Thu Oct 11 09:45:34 2012 +0100

    tracker-extract-playlist: Don't error when to_metadata hash table is NULL

 src/tracker-extract/tracker-extract-playlist.c |   21 ++++++++++++---------
 1 files changed, 12 insertions(+), 9 deletions(-)
---
diff --git a/src/tracker-extract/tracker-extract-playlist.c b/src/tracker-extract/tracker-extract-playlist.c
index 7b0a058..f3a33e5 100644
--- a/src/tracker-extract/tracker-extract-playlist.c
+++ b/src/tracker-extract/tracker-extract-playlist.c
@@ -57,7 +57,6 @@ entry_parsed (TotemPlParser *parser,
               GHashTable    *to_metadata,
               gpointer       user_data)
 {
-	gchar *duration;
 	PlaylistMetadata *data;
 
 	data = (PlaylistMetadata *) user_data;
@@ -86,17 +85,21 @@ entry_parsed (TotemPlParser *parser,
 
 	tracker_sparql_builder_object_blank_close (data->metadata);
 
-	duration = g_hash_table_lookup (to_metadata, TOTEM_PL_PARSER_FIELD_DURATION);
+	if (to_metadata) {
+		gchar *duration;
 
-	if (duration == NULL) {
-		duration = g_hash_table_lookup (to_metadata, TOTEM_PL_PARSER_FIELD_DURATION_MS);
-	}
+		duration = g_hash_table_lookup (to_metadata, TOTEM_PL_PARSER_FIELD_DURATION);
+
+		if (duration == NULL) {
+			duration = g_hash_table_lookup (to_metadata, TOTEM_PL_PARSER_FIELD_DURATION_MS);
+		}
 
-	if (duration != NULL) {
-		gint64 secs = totem_pl_parser_parse_duration (duration, FALSE);
+		if (duration != NULL) {
+			gint64 secs = totem_pl_parser_parse_duration (duration, FALSE);
 
-		if (secs > 0) {
-			data->total_time += secs;
+			if (secs > 0) {
+				data->total_time += secs;
+			}
 		}
 	}
 }