diff options
Diffstat (limited to 'arch/x86/kernel/cpu/microcode/core.c')
| -rw-r--r-- | arch/x86/kernel/cpu/microcode/core.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c index 7a329e561354..3afcf3de0dd4 100644 --- a/arch/x86/kernel/cpu/microcode/core.c +++ b/arch/x86/kernel/cpu/microcode/core.c @@ -632,6 +632,7 @@ static const struct attribute_group cpu_root_microcode_group = { static int __init microcode_init(void) { + struct device *dev_root; struct cpuinfo_x86 *c = &boot_cpu_data; int error; @@ -652,10 +653,14 @@ static int __init microcode_init(void) if (IS_ERR(microcode_pdev)) return PTR_ERR(microcode_pdev); - error = sysfs_create_group(&cpu_subsys.dev_root->kobj, &cpu_root_microcode_group); - if (error) { - pr_err("Error creating microcode group!\n"); - goto out_pdev; + dev_root = bus_get_dev_root(&cpu_subsys); + if (dev_root) { + error = sysfs_create_group(&dev_root->kobj, &cpu_root_microcode_group); + put_device(dev_root); + if (error) { + pr_err("Error creating microcode group!\n"); + goto out_pdev; + } } /* Do per-CPU setup */ |