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[ARM] 4088/1: AT91: Unbalanced IRQ in serial driver suspend/resume

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This patch fixes the unbalanced calls to enable_irq_wake() and
disable_irq_wake() in the AT91 (and AVR32) serial driver.

It should resolve these kernel messages:
  Unbalanced IRQ x wake disable
  BUG: warning at kernel/irq/manage.c:167/set_irq_wake()

Original patch from Marc Pignat.

Signed-off-by: Andrew Victor <[email protected]>
Signed-off-by: Russell King <[email protected]>
This commit is contained in:
Andrew Victor 2007-01-09 13:20:54 +01:00 • committed by Russell King
commit 9b93816690
1 changed files with 2 additions and 1 deletions
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3
drivers/serial/atmel_serial.c
View file

@ -890,7 +890,6 @@ static int atmel_serial_suspend(struct platform_device *pdev, pm_message_t state
if (device_may_wakeup(&pdev->dev) && !at91_suspend_entering_slow_clock())
enable_irq_wake(port->irq);
else {
disable_irq_wake(port->irq);
uart_suspend_port(&atmel_uart, port);
atmel_port->suspended = 1;
}
@ -907,6 +906,8 @@ static int atmel_serial_resume(struct platform_device *pdev)
uart_resume_port(&atmel_uart, port);
atmel_port->suspended = 0;
}
else
disable_irq_wake(port->irq);
return 0;
}