Commit-ID: 4ace2e7a48ab426eaa9745ace4c50c6a7adb3992 Gitweb: http://git.kernel.org/tip/4ace2e7a48ab426eaa9745ace4c50c6a7adb3992 Author: Borislav Petkov <b...@suse.de> AuthorDate: Mon, 7 Mar 2016 11:10:04 +0100 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Tue, 8 Mar 2016 09:08:45 +0100
x86/microcode/intel: Drop orig_sum from ext signature checksum It is 0 because for !0 values we would have exited already. Signed-off-by: Borislav Petkov <b...@suse.de> Link: http://lkml.kernel.org/r/1457345404-28884-6-git-send-email...@alien8.de Signed-off-by: Thomas Gleixner <t...@linutronix.de> --- arch/x86/kernel/cpu/microcode/intel_lib.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/cpu/microcode/intel_lib.c b/arch/x86/kernel/cpu/microcode/intel_lib.c index 23b1d92..2ce1a7d 100644 --- a/arch/x86/kernel/cpu/microcode/intel_lib.c +++ b/arch/x86/kernel/cpu/microcode/intel_lib.c @@ -130,9 +130,9 @@ int microcode_sanity_check(void *mc, int print_err) for (i = 0; i < ext_sigcount; i++) { ext_sig = (void *)ext_header + EXT_HEADER_SIZE + EXT_SIGNATURE_SIZE * i; - sum = orig_sum - - (mc_header->sig + mc_header->pf + mc_header->cksum) - + (ext_sig->sig + ext_sig->pf + ext_sig->cksum); + + sum = (mc_header->sig + mc_header->pf + mc_header->cksum) - + (ext_sig->sig + ext_sig->pf + ext_sig->cksum); if (sum) { if (print_err) pr_err("Bad extended signature checksum, aborting.\n");
