h8300: signal stack fix

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

arch/h8300/kernel/signal.c

@@ -95,7 +95,7 @@ restore_sigcontext(struct sigcontext *usc, int *pd0)
 	regs->ccr |= ccr;
 	regs->orig_er0 = -1;		/* disable syscall checks */
 	err |= __get_user(usp, &usc->sc_usp);
-	wrusp(usp);
+	regs->sp = usp;
 
 	err |= __get_user(er0, &usc->sc_er0);
 	*pd0 = er0;
@@ -180,7 +180,7 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
 		return -EFAULT;
 
 	/* Set up to return from userspace.  */
-	ret = frame->retcode;
+	ret = (unsigned char *)&frame->retcode;
 	if (ksig->ka.sa.sa_flags & SA_RESTORER)
 		ret = (unsigned char *)(ksig->ka.sa.sa_restorer);
 	else {
@@ -196,8 +196,8 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
 		return -EFAULT;
 
 	/* Set up registers for signal handler */
-	wrusp((unsigned long) frame);
-	regs->pc  = (unsigned long) ksig->ka.sa.sa_handler;
+	regs->sp  = (unsigned long)frame;
+	regs->pc  = (unsigned long)ksig->ka.sa.sa_handler;
 	regs->er0 = ksig->sig;
 	regs->er1 = (unsigned long)&(frame->info);
 	regs->er2 = (unsigned long)&frame->uc;