From 9493ed19fbc302d8e3ba487b7c99a7beeddbff96 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 13 Mar 2023 19:29:00 +0100 Subject: [PATCH] s390/topology: move to use bus_get_dev_root() Direct access to the struct bus_type dev_root pointer is going away soon so replace that with a call to bus_get_dev_root() instead, which is what it is there for. Cc: Vasily Gorbik Cc: Alexander Gordeev Cc: Christian Borntraeger Cc: Sven Schnelle Cc: linux-s390@vger.kernel.org Acked-by: Heiko Carstens Link: https://lore.kernel.org/r/20230313182918.1312597-18-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman --- arch/s390/kernel/topology.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c index c6eecd4a5302..72af753d1bba 100644 --- a/arch/s390/kernel/topology.c +++ b/arch/s390/kernel/topology.c @@ -649,12 +649,21 @@ static struct ctl_table topology_dir_table[] = { static int __init topology_init(void) { + struct device *dev_root; + int rc = 0; + timer_setup(&topology_timer, topology_timer_fn, TIMER_DEFERRABLE); if (MACHINE_HAS_TOPOLOGY) set_topology_timer(); else topology_update_polarization_simple(); register_sysctl_table(topology_dir_table); - return device_create_file(cpu_subsys.dev_root, &dev_attr_dispatching); + + dev_root = bus_get_dev_root(&cpu_subsys); + if (dev_root) { + rc = device_create_file(dev_root, &dev_attr_dispatching); + put_device(dev_root); + } + return rc; } device_initcall(topology_init);