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serial: imx: drop if that always evaluates to true 

The check sts & USR1_DTRD was just evaluated to true two lines above.
So this change doesn't have any effect on the semantic of the driver.

Fixes: 27e1650105 ("serial: imx: implement DSR irq handling for DTE mode")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Uwe Kleine-König 2018-02-18 22:02:42 +01:00 committed by Greg Kroah-Hartman
parent 0ef5a6e09b
commit 135ccb0129
1 changed files with 1 additions and 2 deletions
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3
drivers/tty/serial/imx.c
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@ -781,8 +781,7 @@ static irqreturn_t imx_int(int irq, void *dev_id)
if (sts & USR1_DTRD) {
unsigned long flags;
if (sts & USR1_DTRD)
writel(USR1_DTRD, sport->port.membase + USR1);
writel(USR1_DTRD, sport->port.membase + USR1);
spin_lock_irqsave(&sport->port.lock, flags);
imx_mctrl_check(sport);