1 files changed, 3 insertions, 0 deletions

diff --git a/arch/avr32/kernel/signal.c b/arch/avr32/kernel/signal.c
index 5616a00c10ba..c5b11f9067f1 100644
--- a/arch/avr32/kernel/signal.c
+++ b/arch/avr32/kernel/signal.c
@@ -93,6 +93,9 @@ 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)
+                goto badframe;
+
         pr_debug("Context restored: pc = %08lx, lr = %08lx, sp = %08lx\n",
                  regs->pc, regs->lr, regs->sp);