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Subject[PATCH 4.4 05/74] x86/microcode/intel: Fix BDW late-loading revision check
4.4-stable review patch.  If anyone has any objections, please let me know.


From: Ben Hutchings <>

The backport of commit b94b73733171 ("x86/microcode/intel: Extend BDW
late-loading with a revision check") to 4.4-stable deleted a "return true"
statement. This bug is not present upstream or other stable branches.

Signed-off-by: Ben Hutchings <>
Signed-off-by: Greg Kroah-Hartman <>
arch/x86/kernel/cpu/microcode/intel.c | 1 +
1 file changed, 1 insertion(+)

--- a/arch/x86/kernel/cpu/microcode/intel.c
+++ b/arch/x86/kernel/cpu/microcode/intel.c
@@ -1005,6 +1005,7 @@ static bool is_blacklisted(unsigned int
c->microcode < 0x0b000021) {
pr_err_once("Erratum BDF90: late loading with revision < 0x0b000021 (0x%x) disabled.\n", c->microcode);
pr_err_once("Please consider either early loading through initrd/built-in or a potential BIOS update.\n");
+ return true;

return false;

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