Commit-ID:  d982057f631df04f8d78321084a1a71ca51f3364
Gitweb:     http://git.kernel.org/tip/d982057f631df04f8d78321084a1a71ca51f3364
Author:     Torsten Kaiser <just.for.l...@googlemail.com>
AuthorDate: Tue, 23 Jul 2013 22:58:23 +0200
Committer:  H. Peter Anvin <h...@linux.intel.com>
CommitDate: Wed, 31 Jul 2013 08:37:14 -0700

x86, amd, microcode: Fix error path in apply_microcode_amd()

Return -1 (like Intels apply_microcode) when the loading fails, also
do not set the active microcode level on failure.

Signed-off-by: Torsten Kaiser <just.for.l...@googlemail.com>
Link: http://lkml.kernel.org/r/20130723225823.2e4e7...@googlemail.com
Acked-by: Borislav Petkov <b...@suse.de>
Signed-off-by: H. Peter Anvin <h...@linux.intel.com>
---
 arch/x86/kernel/microcode_amd.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index 47ebb1d..7a0adb7 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -220,12 +220,13 @@ int apply_microcode_amd(int cpu)
                return 0;
        }
 
-       if (__apply_microcode_amd(mc_amd))
+       if (__apply_microcode_amd(mc_amd)) {
                pr_err("CPU%d: update failed for patch_level=0x%08x\n",
                        cpu, mc_amd->hdr.patch_id);
-       else
-               pr_info("CPU%d: new patch_level=0x%08x\n", cpu,
-                       mc_amd->hdr.patch_id);
+               return -1;
+       }
+       pr_info("CPU%d: new patch_level=0x%08x\n", cpu,
+               mc_amd->hdr.patch_id);
 
        uci->cpu_sig.rev = mc_amd->hdr.patch_id;
        c->microcode = mc_amd->hdr.patch_id;
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to