6.15-stable review patch. If anyone has any objections, please let me know.
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From: Annie Li jiayanli@google.com
[ Upstream commit b43dc4ab097859c24e2a6993119c927cffc856aa ]
After
6f059e634dcd("x86/microcode: Clarify the late load logic"),
if the load is up-to-date, the AMD side returns UCODE_OK which leads to load_late_locked() returning -EBADFD.
Handle UCODE_OK in the switch case to avoid this error.
[ bp: Massage commit message. ]
Fixes: 6f059e634dcd ("x86/microcode: Clarify the late load logic") Signed-off-by: Annie Li jiayanli@google.com Signed-off-by: Borislav Petkov (AMD) bp@alien8.de Link: https://lore.kernel.org/20250430053424.77438-1-jiayanli@google.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/kernel/cpu/microcode/core.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c index 079f046ee26d1..e8021d3e58824 100644 --- a/arch/x86/kernel/cpu/microcode/core.c +++ b/arch/x86/kernel/cpu/microcode/core.c @@ -696,6 +696,8 @@ static int load_late_locked(void) return load_late_stop_cpus(true); case UCODE_NFOUND: return -ENOENT; + case UCODE_OK: + return 0; default: return -EBADFD; }