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Commit 32eea8bf authored by Deepak Kumar's avatar Deepak Kumar
Browse files

msm: kgsl: Don't error out if dst size is not equal to src in copy_prop 



Update copy_prop to allow copy to a destination buffer of size greater
than or less the source buffer size. This is needed to correctly pass
gaming bin fuse value to user mode.

Change-Id: I1b651c79b9286c1259fbace815d58892462a7931
Signed-off-by: default avatarDeepak Kumar <dkumar@codeaurora.org>
parent 160be75a

drivers/gpu/msm/adreno.c

+3 −5
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2002,2007-2019, The Linux Foundation. All rights reserved.

 * Copyright (c) 2002,2007-2020, The Linux Foundation. All rights reserved.

 */

#include <linux/delay.h>

#include <linux/firmware.h>
@@ -2376,10 +2376,8 @@ int adreno_reset(struct kgsl_device *device, int fault) 
static int copy_prop(struct kgsl_device_getproperty *param,

		void *src, size_t size)

{

	if (param->sizebytes != size)

		return -EINVAL;



	if (copy_to_user(param->value, src, param->sizebytes))

	if (copy_to_user(param->value, src,

		min_t(u32, size, param->sizebytes)))

		return -EFAULT;



	return 0;