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-rw-r--r--arch/x86/kernel/microcode.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kernel/microcode.c b/arch/x86/kernel/microcode.c
index 39961bb8329..ad136ad99cb 100644
--- a/arch/x86/kernel/microcode.c
+++ b/arch/x86/kernel/microcode.c
@@ -127,7 +127,8 @@ static int do_microcode_update(void)
old = current->cpus_allowed;
while ((cursor = microcode_ops->get_next_ucode(&new_mc, cursor)) > 0) {
- error = microcode_ops->microcode_sanity_check(new_mc);
+ if (microcode_ops->microcode_sanity_check != NULL)
+ error = microcode_ops->microcode_sanity_check(new_mc);
if (error)
goto out;
/*