x86, microcode, AMD: Add a vendor-specific exit function

This will be used to do cleanup work before the driver exits.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c
index 9d46f5e43b51..9302e2d0eb4b 100644
--- a/arch/x86/kernel/microcode_core.c
+++ b/arch/x86/kernel/microcode_core.c
@@ -563,6 +563,8 @@ module_init(microcode_init);
 
 static void __exit microcode_exit(void)
 {
+        struct cpuinfo_x86 *c = &cpu_data(0);
+
         microcode_dev_exit();
 
         unregister_hotcpu_notifier(&mc_cpu_notifier);
@@ -580,6 +582,9 @@ static void __exit microcode_exit(void)
 
         microcode_ops = NULL;
 
+        if (c->x86_vendor == X86_VENDOR_AMD)
+                exit_amd_microcode();
+
         pr_info("Microcode Update Driver: v" MICROCODE_VERSION " removed.\n");
 }
 module_exit(microcode_exit);