mirror of https://gitee.com/openkylin/linux.git
x86/microcode: Fix the ancient deprecated microcode loading method
Commit2613f36ed9
("x86/microcode: Attempt late loading only when new microcode is present") added the new define UCODE_NEW to denote that an update should happen only when newer microcode (than installed on the system) has been found. But it missed adjusting that for the old /dev/cpu/microcode loading interface. Fix it. Fixes:2613f36ed9
("x86/microcode: Attempt late loading only when new microcode is present") Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jann Horn <jannh@google.com> Link: https://lkml.kernel.org/r/20190405133010.24249-3-bp@alien8.de
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@ -418,8 +418,9 @@ static int do_microcode_update(const void __user *buf, size_t size)
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if (ustate == UCODE_ERROR) {
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error = -1;
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break;
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} else if (ustate == UCODE_OK)
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} else if (ustate == UCODE_NEW) {
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apply_microcode_on_target(cpu);
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}
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}
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return error;
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