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Commit 1a0f9980 authored by Karthikeyan Mani's avatar Karthikeyan Mani
Browse files

soc: soundwire: check for valid pointer before dereference 



Check if the swr pointer obtained is not NULL before
dereferencing it.

Change-Id: I119141e5fd0b365789f8295d7b43867ede29dd8c
Signed-off-by: default avatarKarthikeyan Mani <kmani@codeaurora.org>
parent c63ec8cd

soc/soundwire.c

+7 −3
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.

 * Copyright (c) 2015-2019, The Linux Foundation. All rights reserved.

 */



#include <linux/kernel.h>
@@ -998,10 +998,14 @@ static int swr_device_match(struct device *dev, struct device_driver *driver) 
	if (!drv)

		return -EINVAL;



	if (dev->type == &swr_dev_type)

	if (dev->type == &swr_dev_type) {

		swr_dev = to_swr_device(dev);

	else

		if (!swr_dev)

			return -EINVAL;

	} else {

		return 0;

	}



	if (drv->id_table)

		return swr_match(drv->id_table, swr_dev) != NULL;