s390: fix fpu restore in entry.S

[linux-2.6-microblaze.git] / arch / s390 / kernel / entry.S

diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 5346545..26bb060 100644 (file)
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -1068,6 +1068,7 @@ EXPORT_SYMBOL(save_fpu_regs)
  *     %r4
  */
 load_fpu_regs:
+       stnsm   __SF_EMPTY(%r15),0xfc
        lg      %r4,__LC_CURRENT
        aghi    %r4,__TASK_thread
        TSTMSK  __LC_CPU_FLAGS,_CIF_FPU
@@ -1099,6 +1100,7 @@ load_fpu_regs:
 .Lload_fpu_regs_done:
        ni      __LC_CPU_FLAGS+7,255-_CIF_FPU
 .Lload_fpu_regs_exit:
+       ssm     __SF_EMPTY(%r15)
        BR_EX   %r14
 .Lload_fpu_regs_end:
 ENDPROC(load_fpu_regs)