x86: xsave: fix error condition in save_i387_xstate()

Actually return failure on error.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
index ed5274a5bb0f..448fde96963c 100644
--- a/arch/x86/kernel/xsave.c
+++ b/arch/x86/kernel/xsave.c
@@ -121,6 +121,8 @@ int save_i387_xstate(void __user *buf)
                 err |= __put_user(FP_XSTATE_MAGIC2,
                                   (__u32 __user *) (buf + sig_xstate_size
                                                     - FP_XSTATE_MAGIC2_SIZE));
+                if (err)
+                        return err;
         }
 
         return 1;