From mboxrd@z Thu Jan 1 00:00:00 1970 From: simon@budig.de (Simon Budig) Date: Fri, 22 Jul 2011 13:07:42 +0200 Subject: [PATCH] Fix logic of tx_empty. Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org test for TX-FIFO *not empty* instead of TX-FIFO full. Signed-off-by: Simon Budig --- drivers/tty/serial/amba-pl011.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 05eb292..a23b419 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -792,7 +792,7 @@ static unsigned int pl01x_tx_empty(struct uart_port *port) { struct uart_amba_port *uap = (struct uart_amba_port *)port; unsigned int status = readw(uap->port.membase + UART01x_FR); - return status & (UART01x_FR_BUSY|UART01x_FR_TXFF) ? 0 : TIOCSER_TEMT; + return (status & UART01x_FR_BUSY) || !(status & UART011_FR_TXFE) ? 0 : TIOCSER_TEMT; } static unsigned int pl01x_get_mctrl(struct uart_port *port) -- 1.7.0.4 --------------060708010803060308030706--