From ba019a3e2ad53dcc56f3c0b15e1061b77129b63d Mon Sep 17 00:00:00 2001 From: Robert Baldyga Date: Wed, 28 Jan 2015 14:44:23 +0100 Subject: [PATCH] serial: samsung: remove redundant interrupt enabling Function s3c24xx_serial_start_tx_pio() enables interrupts if needed, so we don't have to (or even we shouldn't) enable them before. Signed-off-by: Robert Baldyga Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/samsung.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index a6bef8dcdc3c..236abae97613 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -358,15 +358,8 @@ void s3c24xx_serial_start_tx(struct uart_port *port) s3c24xx_serial_rx_disable(port); tx_enabled(port) = 1; - if (!ourport->dma || !ourport->dma->tx_chan) { - if (s3c24xx_serial_has_interrupt_mask(port)) - __clear_bit(S3C64XX_UINTM_TXD, - portaddrl(port, S3C64XX_UINTM)); - else - enable_irq(ourport->tx_irq); - + if (!ourport->dma || !ourport->dma->tx_chan) s3c24xx_serial_start_tx_pio(ourport); - } } if (ourport->dma && ourport->dma->tx_chan) { -- 2.11.0