diff options
Diffstat (limited to 'drivers/tty/serial/sunsab.c')
| -rw-r--r-- | drivers/tty/serial/sunsab.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/tty/serial/sunsab.c b/drivers/tty/serial/sunsab.c index 80a58eca785b..bb09920ac9c7 100644 --- a/drivers/tty/serial/sunsab.c +++ b/drivers/tty/serial/sunsab.c @@ -427,6 +427,9 @@ static void sunsab_start_tx(struct uart_port *port) struct circ_buf *xmit = &up->port.state->xmit; int i; + if (uart_circ_empty(xmit)) + return; + up->interrupt_mask1 &= ~(SAB82532_IMR1_ALLS|SAB82532_IMR1_XPR); writeb(up->interrupt_mask1, &up->regs->w.imr1); @@ -473,12 +476,6 @@ static void sunsab_stop_rx(struct uart_port *port) writeb(up->interrupt_mask1, &up->regs->w.imr0); } -/* port->lock held by caller. */ -static void sunsab_enable_ms(struct uart_port *port) -{ - /* For now we always receive these interrupts. */ -} - /* port->lock is not held. */ static void sunsab_break_ctl(struct uart_port *port, int break_state) { @@ -807,7 +804,6 @@ static struct uart_ops sunsab_pops = { .start_tx = sunsab_start_tx, .send_xchar = sunsab_send_xchar, .stop_rx = sunsab_stop_rx, - .enable_ms = sunsab_enable_ms, .break_ctl = sunsab_break_ctl, .startup = sunsab_startup, .shutdown = sunsab_shutdown, |
