x86, fpu: shift drop_init_fpu() from save_xstate_sig() to handle_signal()

[platform/adaptation/renesas_rcar/renesas_kernel.git] / arch / x86 / kernel / xsave.c

diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
index a4b451c..dd50e26 100644 (file)
--- a/arch/x86/kernel/xsave.c
+++ b/arch/x86/kernel/xsave.c
@@ -268,8 +268,6 @@ int save_xstate_sig(void __user *buf, void __user *buf_fx, int size)
        if (use_fxsr() && save_xstate_epilog(buf_fx, ia32_fxstate))
                return -1;
 
-       drop_init_fpu(tsk);     /* trigger finit */
-
        return 0;
 }
 
@@ -399,8 +397,11 @@ int __restore_xstate_sig(void __user *buf, void __user *buf_fx, int size)
                        set_used_math();
                }
 
-               if (use_eager_fpu())
+               if (use_eager_fpu()) {
+                       preempt_disable();
                        math_state_restore();
+                       preempt_enable();
+               }
 
                return err;
        } else {