From: Anand Moon <[email protected]> drop the spin_unlock/lock around uart_write_wakeup to protect write wakeup for uart port.
Signed-off-by: Anand Moon <[email protected]> --- changes logs: drop the previous approch of spin_unlock_irqrestore/save --- drivers/tty/serial/samsung.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index d72cd73..0cb70a9 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -758,11 +758,8 @@ static irqreturn_t s3c24xx_serial_tx_chars(int irq, void *id) goto out; } - if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) { - spin_unlock(&port->lock); + if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) uart_write_wakeup(port); - spin_lock(&port->lock); - } if (uart_circ_empty(xmit)) s3c24xx_serial_stop_tx(port); -- 1.9.1
