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s390/smp: 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 <gor@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: linux-s390@vger.kernel.org
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Link: https://lore.kernel.org/r/20230313182918.1312597-19-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2023-03-13 19:29:01 +01:00
parent 9493ed19fb
commit 31e7c4cc7d
1 changed files with 9 additions and 3 deletions
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12
arch/s390/kernel/smp.c
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@ -1227,11 +1227,17 @@ static DEVICE_ATTR_WO(rescan);
static int __init s390_smp_init(void)
{
struct device *dev_root;
int cpu, rc = 0;
rc = device_create_file(cpu_subsys.dev_root, &dev_attr_rescan);
if (rc)
return rc;
dev_root = bus_get_dev_root(&cpu_subsys);
if (dev_root) {
rc = device_create_file(dev_root, &dev_attr_rescan);
put_device(dev_root);
if (rc)
return rc;
}
for_each_present_cpu(cpu) {
rc = smp_add_present_cpu(cpu);
if (rc)