From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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 <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>
---

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;
 }