Remove the BKL calls from the TPM driver, which were added in the overall

/*

 * Device file system interface to the TPM

 *

 * It's assured that the chip will be opened just once,

 * by the check of is_open variable, which is protected

 * by driver_lock.

 */

int tpm_open(struct inode *inode, struct file *file)

{

	int rc = 0, minor = iminor(inode);

	struct tpm_chip *chip = NULL, *pos;

	lock_kernel();

	spin_lock(&driver_lock);

	list_for_each_entry(pos, &tpm_chip_list, list) {

	if (chip->data_buffer == NULL) {

		chip->num_opens--;

		put_device(chip->dev);

		unlock_kernel();

		return -ENOMEM;

	}

	atomic_set(&chip->data_pending, 0);

	file->private_data = chip;

	unlock_kernel();

	return 0;

err_out:

	spin_unlock(&driver_lock);

	unlock_kernel();

	return rc;

}

EXPORT_SYMBOL_GPL(tpm_open);