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| author | Ingo Molnar <mingo@kernel.org> | 2012-04-14 13:30:32 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-04-14 13:30:32 +0200 |
| commit | 1c2b443e2a4b081870aea25e47d438f8a5326910 (patch) | |
| tree | 99c363e0e7af546ff6b7bb6c9c1e9eec061ae0ba /arch | |
| parent | 668ce0ac707719d866af7e432e518af7b4c575ad (diff) | |
| parent | 283c1f2558ef4a4411fe908364b15b73b6ab44cf (diff) | |
| download | linux-1c2b443e2a4b081870aea25e47d438f8a5326910.tar.gz linux-1c2b443e2a4b081870aea25e47d438f8a5326910.tar.bz2 linux-1c2b443e2a4b081870aea25e47d438f8a5326910.zip | |
Merge tag 'microcode-fix-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp into x86/urgent
Pull from Borislav Petkov a two-patch fix from Andreas taking care of a sysfs
warning when the microcode driver is loaded on unsupported platforms.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/microcode_amd.c | 12 | ||||
| -rw-r--r-- | arch/x86/kernel/microcode_core.c | 10 |
2 files changed, 11 insertions, 11 deletions
diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c index 73465aab28f8..8a2ce8fd41c0 100644 --- a/arch/x86/kernel/microcode_amd.c +++ b/arch/x86/kernel/microcode_amd.c @@ -82,11 +82,6 @@ static int collect_cpu_info_amd(int cpu, struct cpu_signature *csig) { struct cpuinfo_x86 *c = &cpu_data(cpu); - if (c->x86_vendor != X86_VENDOR_AMD || c->x86 < 0x10) { - pr_warning("CPU%d: family %d not supported\n", cpu, c->x86); - return -1; - } - csig->rev = c->microcode; pr_info("CPU%d: patch_level=0x%08x\n", cpu, csig->rev); @@ -380,6 +375,13 @@ static struct microcode_ops microcode_amd_ops = { struct microcode_ops * __init init_amd_microcode(void) { + struct cpuinfo_x86 *c = &cpu_data(0); + + if (c->x86_vendor != X86_VENDOR_AMD || c->x86 < 0x10) { + pr_warning("AMD CPU family 0x%x not supported\n", c->x86); + return NULL; + } + patch = (void *)get_zeroed_page(GFP_KERNEL); if (!patch) return NULL; diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c index 87a0f8688301..c9bda6d6035c 100644 --- a/arch/x86/kernel/microcode_core.c +++ b/arch/x86/kernel/microcode_core.c @@ -419,10 +419,8 @@ static int mc_device_add(struct device *dev, struct subsys_interface *sif) if (err) return err; - if (microcode_init_cpu(cpu) == UCODE_ERROR) { - sysfs_remove_group(&dev->kobj, &mc_attr_group); + if (microcode_init_cpu(cpu) == UCODE_ERROR) return -EINVAL; - } return err; } @@ -528,11 +526,11 @@ static int __init microcode_init(void) microcode_ops = init_intel_microcode(); else if (c->x86_vendor == X86_VENDOR_AMD) microcode_ops = init_amd_microcode(); - - if (!microcode_ops) { + else pr_err("no support for this CPU vendor\n"); + + if (!microcode_ops) return -ENODEV; - } microcode_pdev = platform_device_register_simple("microcode", -1, NULL, 0); |