diff options
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/sysfs.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c index ef9a61718940..0f39a6b84132 100644 --- a/arch/powerpc/kernel/sysfs.c +++ b/arch/powerpc/kernel/sysfs.c @@ -217,13 +217,18 @@ static DEVICE_ATTR(dscr_default, 0600, static void __init sysfs_create_dscr_default(void) { if (cpu_has_feature(CPU_FTR_DSCR)) { + struct device *dev_root; int cpu; dscr_default = spr_default_dscr; for_each_possible_cpu(cpu) paca_ptrs[cpu]->dscr_default = dscr_default; - device_create_file(cpu_subsys.dev_root, &dev_attr_dscr_default); + dev_root = bus_get_dev_root(&cpu_subsys); + if (dev_root) { + device_create_file(dev_root, &dev_attr_dscr_default); + put_device(dev_root); + } } } #endif /* CONFIG_PPC64 */ @@ -746,7 +751,12 @@ static DEVICE_ATTR(svm, 0444, show_svm, NULL); static void __init create_svm_file(void) { - device_create_file(cpu_subsys.dev_root, &dev_attr_svm); + struct device *dev_root = bus_get_dev_root(&cpu_subsys); + + if (dev_root) { + device_create_file(dev_root, &dev_attr_svm); + put_device(dev_root); + } } #else static void __init create_svm_file(void) |