From: Alan Cox Date: Wed, 30 Apr 2008 07:54:03 +0000 (-0700) Subject: mxser: switch to put_char being int X-Git-Tag: firefly_0821_release~20671 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=0be2eadee7baff96d2c7339be4bc2a0f5c96e4f5;p=firefly-linux-kernel-4.4.55.git mxser: switch to put_char being int Signed-off-by: Alan Cox Cc: Jiri Slaby Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c index 28f63566ab8a..97b1291ec224 100644 --- a/drivers/char/mxser.c +++ b/drivers/char/mxser.c @@ -1091,16 +1091,16 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou return total; } -static void mxser_put_char(struct tty_struct *tty, unsigned char ch) +static int mxser_put_char(struct tty_struct *tty, unsigned char ch) { struct mxser_port *info = tty->driver_data; unsigned long flags; if (!info->xmit_buf) - return; + return 0; if (info->xmit_cnt >= SERIAL_XMIT_SIZE - 1) - return; + return 0; spin_lock_irqsave(&info->slock, flags); info->xmit_buf[info->xmit_head++] = ch; @@ -1118,6 +1118,7 @@ static void mxser_put_char(struct tty_struct *tty, unsigned char ch) spin_unlock_irqrestore(&info->slock, flags); } } + return 1; }