The following cleanup patch:
  add __user markings to a few userspace system functions
mysteriously added a "&" operator that doesn't belong in there, breaking the
atomic sections code.
Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
 
 void finish_atomic_sections (struct pt_regs *regs)
 {
-       int __user *up0 = (int __user *)®s->p0;
+       int __user *up0 = (int __user *)regs->p0;
 
        if (regs->pc < ATOMIC_SEQS_START || regs->pc >= ATOMIC_SEQS_END)
                return;