From 9d086e0ddaeb08876f4df3a1485166bfd7483252 Mon Sep 17 00:00:00 2001
From: Deepak R Varma <drv@mailo.com>
Date: Fri, 23 Dec 2022 02:45:00 +0530
Subject: [PATCH] drm/amdkfd: Use resource_size() helper function
Git-commit: 9d086e0ddaeb08876f4df3a1485166bfd7483252
Patch-mainline: v6.3-rc1
References: git-fixes

Use the resource_size() function instead of a open coded computation
resource size. It makes the code more readable.

Issue identified using resource_size.cocci coccinelle semantic patch.

Signed-off-by: Deepak R Varma <drv@mailo.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
index 10048ce16aea..de8ce72344fc 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
@@ -1027,8 +1027,7 @@ int svm_migrate_init(struct amdgpu_device *adev)
 		/* Disable SVM support capability */
 		pgmap->type = 0;
 		if (pgmap->type == MEMORY_DEVICE_PRIVATE)
-			devm_release_mem_region(adev->dev, res->start,
-						res->end - res->start + 1);
+			devm_release_mem_region(adev->dev, res->start, resource_size(res));
 		return PTR_ERR(r);
 	}
 
-- 
2.35.3