drm/amdgpu: Change assignment for a variable in amdgpu_cgs_acpi_eval_object()

Indicate successful function execution only at the end.
Thus omit initialisation for the variable "result" at the beginning.
Reviewed-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NMarkus Elfring <elfring@users.sourceforge.net>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c

@@ -920,7 +920,7 @@ static int amdgpu_cgs_acpi_eval_object(struct cgs_device *cgs_device,
 	struct cgs_acpi_method_argument *argument;
 	uint32_t i, count;
 	acpi_status status;
-	int result = 0;
+	int result;
 
 	handle = ACPI_HANDLE(&adev->pdev->dev);
 	if (!handle)
@@ -1061,6 +1061,7 @@ static int amdgpu_cgs_acpi_eval_object(struct cgs_device *cgs_device,
 		params++;
 	}
 
+	result = 0;
 free_obj:
 	kfree(obj);
 free_input: