From 0ca5bd0d886578ad0afeceaa83458c0f35cb3c6b Mon Sep 17 00:00:00 2001 From: Suresh Siddha Date: Tue, 24 Jul 2012 16:05:28 -0700 Subject: x86, fpu: Consolidate inline asm routines for saving/restoring fpu state Consolidate x86, x86_64 inline asm routines saving/restoring fpu state using config_enabled(). Signed-off-by: Suresh Siddha Link: http://lkml.kernel.org/r/1343171129-2747-3-git-send-email-suresh.b.siddha@intel.com Signed-off-by: H. Peter Anvin --- arch/x86/kernel/xsave.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'arch/x86/kernel/xsave.c') diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c index 9e1a8a7ba6e6..7a3d4df9eaf6 100644 --- a/arch/x86/kernel/xsave.c +++ b/arch/x86/kernel/xsave.c @@ -176,8 +176,10 @@ int save_i387_xstate(void __user *buf) else err = fxsave_user(buf); - if (err) + if (unlikely(err)) { + __clear_user(buf, xstate_size); return err; + } user_fpu_end(); } else { sanitize_i387_state(tsk); -- cgit v1.2.1