m68knommu: fix syscall restart handling

Fix system call restart handling. We can call directly to the
restart handler, no need to back track through trap that isn't
even implemented on m68knommu.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/m68knommu/kernel/signal.c

@@ -781,15 +781,7 @@ asmlinkage int do_signal(sigset_t *oldset, struct pt_regs *regs)
 	/* Did we come from a system call? */
 	if (regs->orig_d0 >= 0) {
 		/* Restart the system call - no handlers present */
-		if (regs->d0 == -ERESTARTNOHAND
-		    || regs->d0 == -ERESTARTSYS
-		    || regs->d0 == -ERESTARTNOINTR) {
-			regs->d0 = regs->orig_d0;
-			regs->pc -= 2;
-		} else if (regs->d0 == -ERESTART_RESTARTBLOCK) {
-			regs->d0 = __NR_restart_syscall;
-			regs->pc -= 2;
-		}
+		handle_restart(regs, NULL, 0);
 	}
 	return 0;
 }