perf: Replace acpi_bus_get_device()

Replace acpi_bus_get_device() that is going to be dropped with
acpi_fetch_acpi_dev().

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/10025610.nUPlyArG6x@kreacher
Signed-off-by: Will Deacon <will@kernel.org>

drivers/perf/thunderx2_pmu.c

@@ -887,13 +887,11 @@ static struct tx2_uncore_pmu *tx2_uncore_pmu_init_dev(struct device *dev,
 static acpi_status tx2_uncore_pmu_add(acpi_handle handle, u32 level,
 				    void *data, void **return_value)
 {
+	struct acpi_device *adev = acpi_fetch_acpi_dev(handle);
 	struct tx2_uncore_pmu *tx2_pmu;
-	struct acpi_device *adev;
 	enum tx2_uncore_type type;
 
-	if (acpi_bus_get_device(handle, &adev))
-		return AE_OK;
-	if (acpi_bus_get_status(adev) || !adev->status.present)
+	if (!adev || acpi_bus_get_status(adev) || !adev->status.present)
 		return AE_OK;
 
 	type = get_tx2_pmu_type(adev);

drivers/perf/xgene_pmu.c

@@ -1549,14 +1549,12 @@ static const struct acpi_device_id *xgene_pmu_acpi_match_type(
 static acpi_status acpi_pmu_dev_add(acpi_handle handle, u32 level,
 				    void *data, void **return_value)
 {
+	struct acpi_device *adev = acpi_fetch_acpi_dev(handle);
 	const struct acpi_device_id *acpi_id;
 	struct xgene_pmu *xgene_pmu = data;
 	struct xgene_pmu_dev_ctx *ctx;
-	struct acpi_device *adev;
 
-	if (acpi_bus_get_device(handle, &adev))
-		return AE_OK;
-	if (acpi_bus_get_status(adev) || !adev->status.present)
+	if (!adev || acpi_bus_get_status(adev) || !adev->status.present)
 		return AE_OK;
 
 	acpi_id = xgene_pmu_acpi_match_type(xgene_pmu_acpi_type_match, adev);