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Commit ba019a3e authored by Robert Baldyga's avatar Robert Baldyga Committed by Greg Kroah-Hartman
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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: default avatarRobert Baldyga <r.baldyga@samsung.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 632f32e2

drivers/tty/serial/samsung.c

+1 −8
Original line number Diff line number Diff line
@@ -358,16 +358,9 @@ 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) {

		if (!uart_circ_empty(xmit) && !ourport->tx_in_progress)