Commit a75b7b68 authored by Jiri Slaby's avatar Jiri Slaby Committed by Live-CD User

tty: Char: mxser, use THRE for ASPP_OQUEUE ioctl

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: default avatarJiri Slaby <jirislaby@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 502f295f
...@@ -1806,7 +1806,7 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file, ...@@ -1806,7 +1806,7 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file,
lock_kernel(); lock_kernel();
len = mxser_chars_in_buffer(tty); 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); len += (lsr ? 0 : 1);
unlock_kernel(); unlock_kernel();
......
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