1 files changed, 2 insertions, 1 deletions

diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
index 753588755fee..073afa7dd89a 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
@@ -450,7 +450,8 @@ recurse:
         if (err)
                 goto out_free;
 
-        kobject_uevent(&b->kobj, KOBJ_ADD);
+        if (b)
+                kobject_uevent(&b->kobj, KOBJ_ADD);
 
         return err;