1 files changed, 5 insertions, 1 deletions

diff --git a/arch/sparc64/kernel/signal.c b/arch/sparc64/kernel/signal.c
index f2d88d8f7a42..45d6bf632daa 100644
--- a/arch/sparc64/kernel/signal.c
+++ b/arch/sparc64/kernel/signal.c
@@ -332,6 +332,9 @@ void do_rt_sigreturn(struct pt_regs *regs)
         regs->tpc = tpc;
         regs->tnpc = tnpc;
 
+        /* Prevent syscall restart.  */
+        pt_regs_clear_trap_type(regs);
+
         sigdelsetmask(&set, ~_BLOCKABLE);
         spin_lock_irq(&current->sighand->siglock);
         current->blocked = set;
@@ -515,7 +518,8 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
         siginfo_t info;
         int signr;
         
-        if (pt_regs_is_syscall(regs)) {
+        if (pt_regs_is_syscall(regs) &&
+            (regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY))) {
                 pt_regs_clear_trap_type(regs);
                 cookie.restart_syscall = 1;
         } else