diff --git a/components/dfs/filesystems/jffs2/dfs_jffs2.c b/components/dfs/filesystems/jffs2/dfs_jffs2.c
index 3b96295c76..6516797544 100644
--- a/components/dfs/filesystems/jffs2/dfs_jffs2.c
+++ b/components/dfs/filesystems/jffs2/dfs_jffs2.c
@@ -178,6 +178,7 @@ static int dfs_jffs2_mount(struct dfs_filesystem* fs,
 	result = jffs2_mount(NULL, mte);
 	if (result != 0)
 	{	
+		device_partition[index].dev = NULL;
 		return jffs2_result_to_dfs(result);
 	}
 	/* save this pointer */