drm/amdkfd: Use resource_size() helper function

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>

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
index 10048ce16aea46fccf474772c34ca9d0a61c1bf3..de8ce72344fc57f14d3198256f458cfe8891797e 100644 (file)
--- 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);
        }