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Subject[PATCH 70/79] tty: Char: mxser, use THRE for ASPP_OQUEUE ioctl
Date
From: Jiri Slaby <jirislaby@gmail.com>

In moxa specific ASPP_OQUEUE ioctl command, they apparently want
only know whether there is space in transmitter hold register.

So switch UART_LSR_TEMT to UART_LSR_THRE in that specific case
according to the change in 1.14 moxa drivers.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/char/mxser.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index e218ae2..5e28d39 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -1806,7 +1806,7 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file,

lock_kernel();
len = mxser_chars_in_buffer(tty);
- lsr = inb(info->ioaddr + UART_LSR) & UART_LSR_TEMT;
+ lsr = inb(info->ioaddr + UART_LSR) & UART_LSR_THRE;
len += (lsr ? 0 : 1);
unlock_kernel();

--
1.6.4.2


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