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x86, amd, microcode: Fix error path in apply_microcode_amd() 

Return -1 (like Intels apply_microcode) when the loading fails, also
do not set the active microcode level on failure.

Signed-off-by: Torsten Kaiser <just.for.lkml@googlemail.com>
Link: http://lkml.kernel.org/r/20130723225823.2e4e7588@googlemail.com
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
Torsten Kaiser 2013-07-23 22:58:23 +02:00 committed by H. Peter Anvin
parent f155b6303d
commit d982057f63
1 changed files with 5 additions and 4 deletions
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9
arch/x86/kernel/microcode_amd.c
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@ -220,12 +220,13 @@ int apply_microcode_amd(int cpu)
return 0;
}
if (__apply_microcode_amd(mc_amd))
if (__apply_microcode_amd(mc_amd)) {
pr_err("CPU%d: update failed for patch_level=0x%08x\n",
cpu, mc_amd->hdr.patch_id);
else
pr_info("CPU%d: new patch_level=0x%08x\n", cpu,
mc_amd->hdr.patch_id);
return -1;
}
pr_info("CPU%d: new patch_level=0x%08x\n", cpu,
mc_amd->hdr.patch_id);
uci->cpu_sig.rev = mc_amd->hdr.patch_id;
c->microcode = mc_amd->hdr.patch_id;