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serial: core: remove unneeded irq_wake flag

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There is no need to duplicate a flag which IRQ core takes care of.

Replace custom flag by IRQ core API that retrieves its state.

Signed-off-by: Andy Shevchenko <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Andy Shevchenko 2017-08-13 17:47:42 +03:00 • committed by Greg Kroah-Hartman
commit aef3ad103a
2 changed files with 3 additions and 7 deletions
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9
drivers/tty/serial/serial_core.c
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@ -36,7 +36,7 @@
#include <linux/delay.h>
#include <linux/mutex.h>
#include <asm/irq.h>
#include <linux/irq.h>
#include <linux/uaccess.h>
/*
@ -2083,8 +2083,7 @@ int uart_suspend_port(struct uart_driver *drv, struct uart_port *uport)
tty_dev = device_find_child(uport->dev, &match, serial_match_port);
if (tty_dev && device_may_wakeup(tty_dev)) {
if (!enable_irq_wake(uport->irq))
uport->irq_wake = 1;
enable_irq_wake(uport->irq);
put_device(tty_dev);
mutex_unlock(&port->mutex);
return 0;
@ -2147,10 +2146,8 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *uport)
tty_dev = device_find_child(uport->dev, &match, serial_match_port);
if (!uport->suspended && device_may_wakeup(tty_dev)) {
if (uport->irq_wake) {
if (irqd_is_wakeup_set(irq_get_irq_data((uport->irq))))
disable_irq_wake(uport->irq);
uport->irq_wake = 0;
}
put_device(tty_dev);
mutex_unlock(&port->mutex);
return 0;