riscom/rocket: switch to int put_char method
Alan Cox [Wed, 30 Apr 2008 07:54:05 +0000 (00:54 -0700)]
Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/char/riscom8.c
drivers/char/rocket.c

index a82c2a2..221b5a2 100644 (file)
@@ -1161,16 +1161,17 @@ static int rc_write(struct tty_struct * tty,
        return total;
 }
 
-static void rc_put_char(struct tty_struct * tty, unsigned char ch)
+static int rc_put_char(struct tty_struct * tty, unsigned char ch)
 {
        struct riscom_port *port = (struct riscom_port *)tty->driver_data;
        unsigned long flags;
+       int ret = 0;
 
        if (rc_paranoia_check(port, tty->name, "rc_put_char"))
-               return;
+               return 0;
 
        if (!tty || !port->xmit_buf)
-               return;
+               return 0;
 
        spin_lock_irqsave(&riscom_lock, flags);
        
@@ -1180,9 +1181,11 @@ static void rc_put_char(struct tty_struct * tty, unsigned char ch)
        port->xmit_buf[port->xmit_head++] = ch;
        port->xmit_head &= SERIAL_XMIT_SIZE - 1;
        port->xmit_cnt++;
+       ret = 1;
 
 out:
        spin_unlock_irqrestore(&riscom_lock, flags);
+       return ret;
 }
 
 static void rc_flush_chars(struct tty_struct * tty)
index 00cfb6c..743dc80 100644 (file)
@@ -1663,14 +1663,14 @@ static void rp_hangup(struct tty_struct *tty)
  *  writing routines will write directly to transmit FIFO.
  *  Write buffer and counters protected by spinlocks
  */
-static void rp_put_char(struct tty_struct *tty, unsigned char ch)
+static int rp_put_char(struct tty_struct *tty, unsigned char ch)
 {
        struct r_port *info = (struct r_port *) tty->driver_data;
        CHANNEL_t *cp;
        unsigned long flags;
 
        if (rocket_paranoia_check(info, "rp_put_char"))
-               return;
+               return 0;
 
        /*
         * Grab the port write mutex, locking out other processes that try to
@@ -1699,6 +1699,7 @@ static void rp_put_char(struct tty_struct *tty, unsigned char ch)
        }
        spin_unlock_irqrestore(&info->slock, flags);
        mutex_unlock(&info->write_mtx);
+       return 1;
 }
 
 /*