[PATCH v1] PCI: acpiphp_ibm: Do not use uninitialized device_class

["Rafael J. Wysocki" <rafael@kernel.org>]

From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>

Passing an uninitialized pnp.device_class string to
acpi_bus_generate_netlink_event() is effectively equivalent
to passing an empty string literal to it.

Accordingly, make the driver do the latter instead of doing the
former.

No intentional functional impact.

This will facilitate the removal of device_class from struct
acpi_device_pnp in the future.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/pci/hotplug/acpiphp_ibm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
index f8016ed24523..7337bd1ac6df 100644
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -258,8 +258,7 @@ static void ibm_handle_events(acpi_handle handle, u32 event, void *context)
 
 	if (subevent == 0x80) {
 		pr_debug("%s: generating bus event\n", __func__);
-		acpi_bus_generate_netlink_event(note->device->pnp.device_class,
-						  dev_name(&note->device->dev),
+		acpi_bus_generate_netlink_event("", dev_name(&note->device->dev),
 						  note->event, detail);
 	} else
 		note->event = event;
-- 
2.51.0