linux-kernel - [008/244] omap-serial: Allow IXON and IXOFF to be disabled.

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Date:	Wed, 28 Sep 2011 14:59:32 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Nick Pelly <npelly@...gle.com>,
	"Govindraj.R" <govindraj.raja@...com>
Subject: [008/244] omap-serial: Allow IXON and IXOFF to be disabled.

3.0-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Nick Pelly <npelly@...gle.com>

commit b280a97d1caf6fe1d38b51ebb31219391f5ad1a0 upstream.

Fixes logic bug that software flow control cannot be disabled, because
serial_omap_configure_xonxoff() is not called if both IXON and IXOFF bits
are cleared.

Signed-off-by: Nick Pelly <npelly@...gle.com>
Acked-by: Govindraj.R <govindraj.raja@...com>
Tested-by: Govindraj.R <govindraj.raja@...com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/tty/serial/omap-serial.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -806,8 +806,7 @@ serial_omap_set_termios(struct uart_port
 
 	serial_omap_set_mctrl(&up->port, up->port.mctrl);
 	/* Software Flow Control Configuration */
-	if (termios->c_iflag & (IXON | IXOFF))
-		serial_omap_configure_xonxoff(up, termios);
+	serial_omap_configure_xonxoff(up, termios);
 
 	spin_unlock_irqrestore(&up->port.lock, flags);
 	dev_dbg(up->port.dev, "serial_omap_set_termios+%d\n", up->pdev->id);


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