diff options
Diffstat (limited to 'drivers/tty/serial/lpc32xx_hs.c')
| -rw-r--r-- | drivers/tty/serial/lpc32xx_hs.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/tty/serial/lpc32xx_hs.c b/drivers/tty/serial/lpc32xx_hs.c index c8448e6f52e..701644f0682 100644 --- a/drivers/tty/serial/lpc32xx_hs.c +++ b/drivers/tty/serial/lpc32xx_hs.c @@ -279,7 +279,10 @@ static void __serial_lpc32xx_rx(struct uart_port *port) tmp = readl(LPC32XX_HSUART_FIFO(port->membase)); } + + spin_unlock(&port->lock); tty_flip_buffer_push(tport); + spin_lock(&port->lock); } static void __serial_lpc32xx_tx(struct uart_port *port) @@ -322,8 +325,7 @@ exit_tx: static irqreturn_t serial_lpc32xx_interrupt(int irq, void *dev_id) { struct uart_port *port = dev_id; - struct tty_port *port = &port->state->port; - struct tty_struct *tty = tty_port_tty_get(tport); + struct tty_port *tport = &port->state->port; u32 status; spin_lock(&port->lock); @@ -348,16 +350,12 @@ static irqreturn_t serial_lpc32xx_interrupt(int irq, void *dev_id) LPC32XX_HSUART_IIR(port->membase)); port->icount.overrun++; tty_insert_flip_char(tport, 0, TTY_OVERRUN); - if (tty) { - tty_schedule_flip(tty); - } + tty_schedule_flip(tport); } /* Data received? */ - if (status & (LPC32XX_HSU_RX_TIMEOUT_INT | LPC32XX_HSU_RX_TRIG_INT)) { + if (status & (LPC32XX_HSU_RX_TIMEOUT_INT | LPC32XX_HSU_RX_TRIG_INT)) __serial_lpc32xx_rx(port); - tty_flip_buffer_push(tport); - } /* Transmit data request? */ if ((status & LPC32XX_HSU_TX_INT) && (!uart_tx_stopped(port))) { @@ -366,7 +364,6 @@ static irqreturn_t serial_lpc32xx_interrupt(int irq, void *dev_id) } spin_unlock(&port->lock); - tty_kref_put(tty); return IRQ_HANDLED; } |