1 files changed, 2 insertions, 13 deletions

diff --git a/arch/avr32/kernel/signal.c b/arch/avr32/kernel/signal.c
index 5e01c3a40ced..b80c0b3d2bab 100644
--- a/arch/avr32/kernel/signal.c
+++ b/arch/avr32/kernel/signal.c
@@ -21,12 +21,6 @@
 #include <asm/ucontext.h>
 #include <asm/syscalls.h>
 
-asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
-                               struct pt_regs *regs)
-{
-        return do_sigaltstack(uss, uoss, regs->sp);
-}
-
 struct rt_sigframe
 {
         struct siginfo info;
@@ -91,7 +85,7 @@ asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
         if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
                 goto badframe;
 
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT)
+        if (restore_altstack(&frame->uc.uc_stack))
                 goto badframe;
 
         pr_debug("Context restored: pc = %08lx, lr = %08lx, sp = %08lx\n",
@@ -175,12 +169,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
         /* Set up the ucontext */
         err |= __put_user(0, &frame->uc.uc_flags);
         err |= __put_user(NULL, &frame->uc.uc_link);
-        err |= __put_user((void __user *)current->sas_ss_sp,
-                          &frame->uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(regs->sp),
-                          &frame->uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size,
-                          &frame->uc.uc_stack.ss_size);
+        err |= __save_altstack(&frame->uc.uc_stack, regs->sp);
         err |= setup_sigcontext(&frame->uc.uc_mcontext, regs);
         err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));