diff options
Diffstat (limited to 'drivers/tty/serial/max310x.c')
| -rw-r--r-- | drivers/tty/serial/max310x.c | 23 |
1 files changed, 10 insertions, 13 deletions
diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c index dc0e1ad351f9..97576ff791db 100644 --- a/drivers/tty/serial/max310x.c +++ b/drivers/tty/serial/max310x.c @@ -753,6 +753,14 @@ static void max310x_handle_tx(struct uart_port *port) uart_write_wakeup(port); } +static void max310x_start_tx(struct uart_port *port) +{ + struct max310x_one *one = container_of(port, struct max310x_one, port); + + if (!work_pending(&one->tx_work)) + schedule_work(&one->tx_work); +} + static irqreturn_t max310x_port_irq(struct max310x_port *s, int portno) { struct uart_port *port = &s->p[portno].port; @@ -776,11 +784,8 @@ static irqreturn_t max310x_port_irq(struct max310x_port *s, int portno) } if (rxlen) max310x_handle_rx(port, rxlen); - if (ists & MAX310X_IRQ_TXEMPTY_BIT) { - mutex_lock(&s->mutex); - max310x_handle_tx(port); - mutex_unlock(&s->mutex); - } + if (ists & MAX310X_IRQ_TXEMPTY_BIT) + max310x_start_tx(port); } while (1); return res; } @@ -820,14 +825,6 @@ static void max310x_wq_proc(struct work_struct *ws) mutex_unlock(&s->mutex); } -static void max310x_start_tx(struct uart_port *port) -{ - struct max310x_one *one = container_of(port, struct max310x_one, port); - - if (!work_pending(&one->tx_work)) - schedule_work(&one->tx_work); -} - static unsigned int max310x_tx_empty(struct uart_port *port) { unsigned int lvl, sts; |