1 files changed, 3 insertions, 2 deletions

diff --git a/arch/x86/kernel/microcode_intel_early.c b/arch/x86/kernel/microcode_intel_early.c
index d893e8ed8ac9..2e9e12871c2b 100644
--- a/arch/x86/kernel/microcode_intel_early.c
+++ b/arch/x86/kernel/microcode_intel_early.c
@@ -487,6 +487,7 @@ static inline void show_saved_mc(void)
 #endif
 
 #if defined(CONFIG_MICROCODE_INTEL_EARLY) && defined(CONFIG_HOTPLUG_CPU)
+static DEFINE_MUTEX(x86_cpu_microcode_mutex);
 /*
  * Save this mc into mc_saved_data. So it will be loaded early when a CPU is
  * hot added or resumes.
@@ -507,7 +508,7 @@ int save_mc_for_early(u8 *mc)
          * Hold hotplug lock so mc_saved_data is not accessed by a CPU in
          * hotplug.
          */
-        cpu_hotplug_driver_lock();
+        mutex_lock(&x86_cpu_microcode_mutex);
 
         mc_saved_count_init = mc_saved_data.mc_saved_count;
         mc_saved_count = mc_saved_data.mc_saved_count;
@@ -544,7 +545,7 @@ int save_mc_for_early(u8 *mc)
         }
 
 out:
-        cpu_hotplug_driver_unlock();
+        mutex_unlock(&x86_cpu_microcode_mutex);
 
         return ret;
 }