char: switch gs, cyclades and esp to return int for put_char

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>

1 files changed, 5 insertions, 4 deletions

diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index 571e4fab5bfa..b8fb251f80ee 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -2814,7 +2814,7 @@ static int cy_write(struct tty_struct *tty, const unsigned char *buf, int count)
  * done stuffing characters into the driver.  If there is no room
  * in the queue, the character is ignored.
  */
-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 = tty->driver_data;
         unsigned long flags;
@@ -2824,15 +2824,15 @@ static void cy_put_char(struct tty_struct *tty, unsigned char ch)
 #endif
 
         if (serial_paranoia_check(info, tty->name, "cy_put_char"))
-                return;
+                return 0;
 
         if (!info->xmit_buf)
-                return;
+                return 0;
 
         spin_lock_irqsave(&info->card->card_lock, flags);
         if (info->xmit_cnt >= (int)(SERIAL_XMIT_SIZE - 1)) {
                 spin_unlock_irqrestore(&info->card->card_lock, flags);
-                return;
+                return 0;
         }
 
         info->xmit_buf[info->xmit_head++] = ch;
@@ -2841,6 +2841,7 @@ static void cy_put_char(struct tty_struct *tty, unsigned char ch)
         info->idle_stats.xmit_bytes++;
         info->idle_stats.xmit_idle = jiffies;
         spin_unlock_irqrestore(&info->card->card_lock, flags);
+        return 1;
 }                               /* cy_put_char */
 
 /*