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path: root/drivers/char/mxser.c
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Diffstat (limited to 'drivers/char/mxser.c')
-rw-r--r--drivers/char/mxser.c7
1 files changed, 4 insertions, 3 deletions
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;
}
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