1 files changed, 5 insertions, 0 deletions

diff --git a/include/asm-x86/i387_64.h b/include/asm-x86/i387_64.h
index 0217b74cc9fc..3a4ffba3d6bc 100644
--- a/include/asm-x86/i387_64.h
+++ b/include/asm-x86/i387_64.h
@@ -203,6 +203,11 @@ static inline void save_init_fpu(struct task_struct *tsk)
  */
 static inline int restore_i387(struct _fpstate __user *buf)
 {
+        set_used_math();
+        if (!(task_thread_info(current)->status & TS_USEDFPU)) {
+                clts();
+                task_thread_info(current)->status |= TS_USEDFPU;
+        }
         return restore_fpu_checking((__force struct i387_fxsave_struct *)buf);
 }