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[ARM] 4088/1: AT91: Unbalanced IRQ in serial driver suspend/resume
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 <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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1 changed files with 2 additions and 1 deletions
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@ -890,7 +890,6 @@ static int atmel_serial_suspend(struct platform_device *pdev, pm_message_t state
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if (device_may_wakeup(&pdev->dev) && !at91_suspend_entering_slow_clock())
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enable_irq_wake(port->irq);
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else {
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disable_irq_wake(port->irq);
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uart_suspend_port(&atmel_uart, port);
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atmel_port->suspended = 1;
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}
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@ -907,6 +906,8 @@ static int atmel_serial_resume(struct platform_device *pdev)
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uart_resume_port(&atmel_uart, port);
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atmel_port->suspended = 0;
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}
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else
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disable_irq_wake(port->irq);
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return 0;
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}
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