PCI/ACPI: Replace acpi_bus_get_device() with acpi_fetch_acpi_dev()

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

No intentional functional impact.

Link: https://lore.kernel.org/r/11930209.O9o76ZdvQC@kreacher
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>

drivers/pci/hotplug/acpiphp_glue.c

@@ -226,9 +226,9 @@ static void acpiphp_post_dock_fixup(struct acpi_device *adev)
 static acpi_status acpiphp_add_context(acpi_handle handle, u32 lvl, void *data,
 				       void **rv)
 {
+	struct acpi_device *adev = acpi_fetch_acpi_dev(handle);
 	struct acpiphp_bridge *bridge = data;
 	struct acpiphp_context *context;
-	struct acpi_device *adev;
 	struct acpiphp_slot *slot;
 	struct acpiphp_func *newfunc;
 	acpi_status status = AE_OK;
@@ -238,6 +238,9 @@ static acpi_status acpiphp_add_context(acpi_handle handle, u32 lvl, void *data,
 	struct pci_dev *pdev = bridge->pci_dev;
 	u32 val;
 
+	if (!adev)
+		return AE_OK;
+
 	status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr);
 	if (ACPI_FAILURE(status)) {
 		if (status != AE_NOT_FOUND)
@@ -245,8 +248,6 @@ static acpi_status acpiphp_add_context(acpi_handle handle, u32 lvl, void *data,
 				"can't evaluate _ADR (%#x)\n", status);
 		return AE_OK;
 	}
-	if (acpi_bus_get_device(handle, &adev))
-		return AE_OK;
 
 	device = (adr >> 16) & 0xffff;
 	function = adr & 0xffff;

drivers/pci/hotplug/acpiphp_ibm.c

@@ -433,8 +433,9 @@ static int __init ibm_acpiphp_init(void)
 		goto init_return;
 	}
 	pr_debug("%s: found IBM aPCI device\n", __func__);
-	if (acpi_bus_get_device(ibm_acpi_handle, &device)) {
-		pr_err("%s: acpi_bus_get_device failed\n", __func__);
+	device = acpi_fetch_acpi_dev(ibm_acpi_handle);
+	if (!device) {
+		pr_err("%s: acpi_fetch_acpi_dev failed\n", __func__);
 		retval = -ENODEV;
 		goto init_return;
 	}

drivers/pci/pci-acpi.c

@@ -89,9 +89,9 @@ int acpi_get_rc_resources(struct device *dev, const char *hid, u16 segment,
 		return -ENODEV;
 	}
 
-	ret = acpi_bus_get_device(handle, &adev);
-	if (ret)
-		return ret;
+	adev = acpi_fetch_acpi_dev(handle);
+	if (!adev)
+		return -ENODEV;
 
 	ret = acpi_get_rc_addr(adev, res);
 	if (ret) {