Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 
 }                              /* config_setup */
 
-static void cy_put_char(struct tty_struct *tty, unsigned char ch)
+static int cy_put_char(struct tty_struct *tty, unsigned char ch)
 {
        struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
        unsigned long flags;
 #endif
 
        if (serial_paranoia_check(info, tty->name, "cy_put_char"))
-               return;
+               return 0;
 
        if (!info->xmit_buf)
                return;
        local_irq_save(flags);
        if (info->xmit_cnt >= PAGE_SIZE - 1) {
                local_irq_restore(flags);
-               return;
+               return 0;
        }
 
        info->xmit_buf[info->xmit_head++] = ch;
        info->xmit_head &= PAGE_SIZE - 1;
        info->xmit_cnt++;
        local_irq_restore(flags);
+       return 1;
 }                              /* cy_put_char */
 
 static void cy_flush_chars(struct tty_struct *tty)