Merge "rtac: add error check for misc device register"

/* Copyright (c) 2012-2017, The Linux Foundation. All rights reserved.

/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

		goto nomem;

	}

	return misc_register(&rtac_misc);

	if (misc_register(&rtac_misc) != 0) {

		kzfree(rtac_adm_buffer);

		kzfree(rtac_asm_buffer);

		kzfree(rtac_afe_buffer);

		kzfree(rtac_voice_buffer);

		goto nomem;

	}

	return 0;

nomem:

	return -ENOMEM;

}

void rtac_exit(void)

{

	misc_deregister(&rtac_misc);

	kzfree(rtac_adm_buffer);

	kzfree(rtac_asm_buffer);

	kzfree(rtac_afe_buffer);

	misc_deregister(&rtac_misc);

	kzfree(rtac_voice_buffer);

}

MODULE_DESCRIPTION("SoC QDSP6v2 Real-Time Audio Calibration driver");