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Commit 6d18b4d1 authored by Sudheer Papothi's avatar Sudheer Papothi
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soundwire: Fix NULL pointer check while setting group ID 



Fix NULL pointer check while setting group ID to avoid
dereferening of the pointer.

CRs-Fixed: 971240
Change-Id: Ic5aae901244e7b2b96a894d265a6cc5c119f0367
Signed-off-by: default avatarSudheer Papothi <spapothi@codeaurora.org>
parent ef78af1b

drivers/soundwire/soundwire.c

+4 −2
Original line number Diff line number Diff line 
/* 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
@@ -618,11 +618,13 @@ EXPORT_SYMBOL(swr_reset_device); 
 */

int swr_set_device_group(struct swr_device *swr_dev, u8 id)

{

	struct swr_master *master = swr_dev->master;

	struct swr_master *master;



	if (!swr_dev)

		return -EINVAL;



	swr_dev->group_id = id;

	master = swr_dev->master;

	if (!id && master)

		master->gr_sid = 0;