Merge "diag: Release wake source properly"

/* Copyright (c) 2015, The Linux Foundation. All rights reserved.

/* Copyright (c) 2015-2016, 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

	    !atomic_read(&smd_info->opened))

		return -EIO;

	/*

	 * Always try to read the data if notification is received from smd

	 * In case if packet size is 0 release the wake source hold earlier

	 */

	err = wait_event_interruptible(smd_info->read_wait_q,

				       (smd_info->hdl == NULL) ||

				       (atomic_read(&smd_info->opened) == 0) ||

				       (smd_cur_packet_size(smd_info->hdl)) ||

				       (!atomic_read(&smd_info->diag_state)));

				       (smd_info->hdl != NULL) &&

				       (atomic_read(&smd_info->opened) == 1));

	if (err) {

		diagfwd_channel_read_done(smd_info->fwd_ctxt, buf, 0);

		return -ERESTARTSYS;