tty: Char: mxser, use THRE for ASPP_OQUEUE ioctl
authorJiri Slaby <jirislaby@gmail.com>
Thu, 10 Sep 2009 10:20:08 +0000 (12:20 +0200)
committerLive-CD User <linux@linux.site>
Sat, 19 Sep 2009 20:13:38 +0000 (13:13 -0700)
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

index e218ae29b4823864e67aee5b357d5697a59dd88e..5e28d39b9e8196e306fabc6df4eb1ce58e6c9f70 100644 (file)
@@ -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();