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Commit 5144b59b authored by Shashank Babu Chinta Venkata's avatar Shashank Babu Chinta Venkata
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drm/msm/dsi-staging: add check for regulator count prior to enable 



Add check to ensure regulator information has atleast one valid
regulator prior to enabling it.

Change-Id: Ib35876bd3da53faf237fde15f7fba99d3f3a213c
Signed-off-by: default avatarShashank Babu Chinta Venkata <sbchin@codeaurora.org>
parent b2bdf7dc

drivers/gpu/drm/msm/dsi-staging/dsi_pwr.c

+6 −1
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.

 * Copyright (c) 2016-2018, 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
@@ -341,6 +341,11 @@ int dsi_pwr_enable_regulator(struct dsi_regulator_info *regs, bool enable) 
{

	int rc = 0;



	if (regs->count == 0) {

		pr_debug("No valid regulators to enable\n");

		return 0;

	}



	if (!regs->vregs) {

		pr_err("Invalid params\n");

		return -EINVAL;