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Commit ccc1dedd authored by Manohar Vavilapalli's avatar Manohar Vavilapalli
Browse files

devfreq: Add NULL check before using struct hwmon_node 



Add NULL check to avoid potential NULL pointer dereference.

Change-Id: Iad0b29517f3114ee8ce45c8da22ef02e5a28cee0
Signed-off-by: default avatarManohar Vavilapalli <mvavilap@codeaurora.org>
parent 2f49ba7e

drivers/devfreq/governor_bw_hwmon.c

+3 −1
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2013-2019, The Linux Foundation. All rights reserved.

 * Copyright (c) 2013-2020, 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
@@ -718,6 +718,8 @@ static int devfreq_bw_hwmon_get_freq(struct devfreq *df, 
		*node->dev_ab = node->resume_ab;

		return 0;

	}

	if (!node)

		return -ENODEV;



	get_bw_and_set_irq(node, freq, node->dev_ab);