#undef TO_USER_SPACE
#undef TO_KERNEL_SPACE
#endif
-#define KERNEL_SPACE_DECL mm_segment_t _fs_space_decl
+#define KERNEL_SPACE_DECL mm_segment_t _fs_space_decl={0}
#define TO_USER_SPACE() { _fs_space_decl = get_fs(); set_fs(get_ds()); }
#define TO_KERNEL_SPACE() set_fs(_fs_space_decl)