Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
x86/microcode: 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: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: x86@kernel.org
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: https://lore.kernel.org/r/20230313182918.1312597-9-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+9
-4
+9
-4
arch/x86/kernel/cpu/microcode/core.c
+9
-4
arch/x86/kernel/cpu/microcode/core.c
···
632
632
633
633
static int __init microcode_init(void)
634
634
{
635
+
struct device *dev_root;
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struct cpuinfo_x86 *c = &boot_cpu_data;
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int error;
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638
···
653
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if (IS_ERR(microcode_pdev))
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return PTR_ERR(microcode_pdev);
655
654
656
-
error = sysfs_create_group(&cpu_subsys.dev_root->kobj, &cpu_root_microcode_group);
657
-
if (error) {
658
-
pr_err("Error creating microcode group!\n");
659
-
goto out_pdev;
655
+
dev_root = bus_get_dev_root(&cpu_subsys);
656
+
if (dev_root) {
657
+
error = sysfs_create_group(&dev_root->kobj, &cpu_root_microcode_group);
658
+
put_device(dev_root);
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+
if (error) {
660
+
pr_err("Error creating microcode group!\n");
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+
goto out_pdev;
662
+
}
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663
}
661
664
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665
/* Do per-CPU setup */