linux-kernel - [PATCH RESEND V2 1/2] power: gpio-charger: balance enable/disable_irq

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Message-Id: <1421287238-23522-1-git-send-email-dbaryshkov@gmail.com>
Date:	Thu, 15 Jan 2015 05:00:37 +0300
From:	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>
To:	Sebastian Reichel <sre@...nel.org>
Cc:	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, stable@...r.kernel.org
Subject: [PATCH RESEND V2 1/2] power: gpio-charger: balance enable/disable_irq_wake calls

enable_irq_wakeup returns 0 in case it correctly enabled the IRQ to
generate the wakeup event (and thus resume should call disable_irq_wake).
Currently gpio-charger driver has this logic inverted. Correct that thus
correcting enable/disable_irq_wake() calls balance.

Cc: stable@...r.kernel.org
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@...il.com>
---
 drivers/power/gpio-charger.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/power/gpio-charger.c b/drivers/power/gpio-charger.c
index 7536933..e5deb11 100644
--- a/drivers/power/gpio-charger.c
+++ b/drivers/power/gpio-charger.c
@@ -168,7 +168,7 @@ static int gpio_charger_suspend(struct device *dev)
 
 	if (device_may_wakeup(dev))
 		gpio_charger->wakeup_enabled =
-			enable_irq_wake(gpio_charger->irq);
+			!enable_irq_wake(gpio_charger->irq);
 
 	return 0;
 }
@@ -178,7 +178,7 @@ static int gpio_charger_resume(struct device *dev)
 	struct platform_device *pdev = to_platform_device(dev);
 	struct gpio_charger *gpio_charger = platform_get_drvdata(pdev);
 
-	if (gpio_charger->wakeup_enabled)
+	if (device_may_wakeup(dev) && gpio_charger->wakeup_enabled)
 		disable_irq_wake(gpio_charger->irq);
 	power_supply_changed(&gpio_charger->charger);
 
-- 
2.1.4

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