[PATCH] at91: fix enable/disable_irq_wake symmetry in pcmcia driver

[PATCH] at91: fix enable/disable_irq_wake symmetry in pcmcia driver

[Marc Pignat]

from Marc Pignat <marc.pignat@hevs.ch>

fix enable_irq_wake and disable_irq_wake symmetry in at91 pcmcia driver

Signed-off-by: Marc Pignat <marc.pignat@hevs.ch>
---
This patch applies to the 2.6.21.1 kernel.

disable_irq_wake call must be symmetric with enable_irq_wake. This patch fix 
that problem for the at91_pcmia driver.
It seems that this patch was forgotten when we've fixed irq_wake symmetry in 
all at91 related drivers.
It was discussed in the "at91 drivers and [enable/disable]_irq_wake (wrong?) 
usage" thread on the linux-arm-kernel mailing list.

Regards

Marc

--- 2.6.21.1/drivers/pcmcia/at91_cf.c.orig	2007-05-10 08:43:16.000000000 +0200
+++ 2.6.21.1/drivers/pcmcia/at91_cf.c	2007-05-10 09:07:06.000000000 +0200
@@ -336,16 +336,18 @@ static int at91_cf_suspend(struct platfo
 		enable_irq_wake(board->det_pin);
 		if (board->irq_pin)
 			enable_irq_wake(board->irq_pin);
-	} else {
-		disable_irq_wake(board->det_pin);
-		if (board->irq_pin)
-			disable_irq_wake(board->irq_pin);
 	}
 	return 0;
 }

 static int at91_cf_resume(struct platform_device *pdev)
 {
+	if (device_may_wakeup(&pdev->dev)) {
+		disable_irq_wake(board->det_pin);
+		if (board->irq_pin)
+			disable_irq_wake(board->irq_pin);
+	}
+
 	pcmcia_socket_dev_resume(&pdev->dev);
 	return 0;
 }