[tracker] libtracker-db: Fix critical when removing all database files

[Philip Van Hoof <pvanhoof src gnome org>]

commit eeb25b7579f60edb444d251c0c97f7d911235244
Author: Jürg Billeter <j bitron ch>
Date:   Fri May 28 13:32:47 2010 +0200

    libtracker-db: Fix critical when removing all database files

 src/libtracker-db/tracker-db-manager.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/libtracker-db/tracker-db-manager.c b/src/libtracker-db/tracker-db-manager.c
index 4f0a26e..0aa3492 100644
--- a/src/libtracker-db/tracker-db-manager.c
+++ b/src/libtracker-db/tracker-db-manager.c
@@ -464,6 +464,9 @@ db_manager_remove_all (gboolean rm_journal)
 				const gchar *f_name;
 
 				journal_dir = g_dir_open (dirs[i], 0, NULL);
+				if (!journal_dir) {
+					continue;
+				}
 				f_name = g_dir_read_name (journal_dir);
 
 				/* Remove rotated chunks */