Merge "dsp: Make error as debug log when CPU buffer not available"

// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2012-2019, The Linux Foundation. All rights reserved.

 * Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.

 * Author: Brian Swetland <swetland@google.com>

 *

 * This software is licensed under the terms of the GNU General Public

			/* To make it more robust, we could loop and get the

			 * next avail buf, its risky though

			 */

			pr_err("%s: Next buf idx[0x%x] not available, dir[%d]\n",

			pr_debug("%s: Next buf idx[0x%x] not available, dir[%d]\n",

			 __func__, idx, dir);

			mutex_unlock(&port->lock);

			return NULL;