From 257afa3cb6beaad60849655cb272d4b9de74cf63 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 30 Apr 2008 00:54:02 -0700 Subject: [PATCH] amiserial: Switch put char to return success/fail Signed-off-by: Alan Cox Cc: Jiri Slaby Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/amiserial.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c index a5f3956a5971..37457e5a4f2b 100644 --- a/drivers/char/amiserial.c +++ b/drivers/char/amiserial.c @@ -832,33 +832,34 @@ static void change_speed(struct async_struct *info, local_irq_restore(flags); } -static void rs_put_char(struct tty_struct *tty, unsigned char ch) +static int rs_put_char(struct tty_struct *tty, unsigned char ch) { struct async_struct *info; unsigned long flags; if (!tty) - return; + return 0; info = tty->driver_data; if (serial_paranoia_check(info, tty->name, "rs_put_char")) - return; + return 0; if (!info->xmit.buf) - return; + return 0; local_irq_save(flags); if (CIRC_SPACE(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE) == 0) { local_irq_restore(flags); - return; + return 0; } info->xmit.buf[info->xmit.head++] = ch; info->xmit.head &= SERIAL_XMIT_SIZE-1; local_irq_restore(flags); + return 1; } static void rs_flush_chars(struct tty_struct *tty) -- 2.39.5