diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c
index 5bc2e129c585e9204c8b84593b8bd14ef8a35c1b..8ea7877b59c769d543eb4ce21c0f62050a05faf4 100755
--- a/fs/jffs2/background.c
+++ b/fs/jffs2/background.c
@@ -20,7 +20,7 @@
 #define GC_THREAD_FLAG_STOP 2
 #define GC_THREAD_FLAG_HAS_EXIT 4
 
-extern struct MtdNorDev *jffs2_dev_list;
+extern struct MtdNorDev jffs2_dev_list[CONFIG_MTD_PATTITION_NUM];
 static void jffs2_garbage_collect_thread(unsigned long data);
 
 void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c)