MTD NAND Driver Programming Interface
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Exit function

The exit function is only neccecary if the driver is compiled as a module. It releases all resources which are held by the chip driver and unregisters the partitions in the MTD layer. 

#ifdef MODULE
static void __exit board_cleanup (void)
{
	/* Release resources, unregister device */
	nand_release (board_mtd);

	/* unmap physical adress */
	iounmap((void *)baseaddr);
	
	/* Free the MTD device structure */
	kfree (board_mtd);
}
module_exit(board_cleanup);
#endif
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