aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86/kernel/xsave.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/kernel/xsave.c')
-rw-r--r--arch/x86/kernel/xsave.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
index 34f66e58a896..cdc6cf903078 100644
--- a/arch/x86/kernel/xsave.c
+++ b/arch/x86/kernel/xsave.c
@@ -379,7 +379,7 @@ int __restore_xstate_sig(void __user *buf, void __user *buf_fx, int size)
379 * thread's fpu state, reconstruct fxstate from the fsave 379 * thread's fpu state, reconstruct fxstate from the fsave
380 * header. Sanitize the copied state etc. 380 * header. Sanitize the copied state etc.
381 */ 381 */
382 struct xsave_struct *xsave = &tsk->thread.fpu.state->xsave; 382 struct fpu *fpu = &tsk->thread.fpu;
383 struct user_i387_ia32_struct env; 383 struct user_i387_ia32_struct env;
384 int err = 0; 384 int err = 0;
385 385
@@ -393,14 +393,15 @@ int __restore_xstate_sig(void __user *buf, void __user *buf_fx, int size)
393 */ 393 */
394 drop_fpu(tsk); 394 drop_fpu(tsk);
395 395
396 if (__copy_from_user(xsave, buf_fx, state_size) || 396 if (__copy_from_user(&fpu->state->xsave, buf_fx, state_size) ||
397 __copy_from_user(&env, buf, sizeof(env))) { 397 __copy_from_user(&env, buf, sizeof(env))) {
398 fpu_finit(fpu);
398 err = -1; 399 err = -1;
399 } else { 400 } else {
400 sanitize_restored_xstate(tsk, &env, xstate_bv, fx_only); 401 sanitize_restored_xstate(tsk, &env, xstate_bv, fx_only);
401 set_used_math();
402 } 402 }
403 403
404 set_used_math();
404 if (use_eager_fpu()) { 405 if (use_eager_fpu()) {
405 preempt_disable(); 406 preempt_disable();
406 math_state_restore(); 407 math_state_restore();