linux-kernel - [PATCH RFC] OMAP : watchdog : Fix the mismatch of pm

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Message-ID: <1326291618-20416-1-git-send-email-shubhrajyoti@ti.com>
Date:	Wed, 11 Jan 2012 19:50:18 +0530
From:	Shubhrajyoti D <shubhrajyoti@...com>
To:	<linux-watchdog@...r.kernel.org>
CC:	<linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>,
	Shubhrajyoti D <shubhrajyoti@...com>
Subject: [PATCH RFC] OMAP : watchdog : Fix the mismatch of pm_runtime enable and disable

Currently the watchdog driver calls the pm_runtime_enable and never
the disable. This may cause a warning when pm_runtime_enable
checks for the count match.

Also fixes the error

/build/watchdog # insmod omap_wdt.ko
[   44.999389] omap_wdt omap_wdt: Unbalanced pm_runtime_enable!
[   45.011047] OMAP Watchdog Timer Rev 0x00: initial timeout 60 sec
/build/watchdog #

Attempting to fix the same by calling pm_runtime_disable.

Signed-off-by: Shubhrajyoti D <shubhrajyoti@...com>
---
 drivers/watchdog/omap_wdt.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index 971179d..d084a7a 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -339,6 +339,7 @@ static int __devinit omap_wdt_probe(struct platform_device *pdev)
 	return 0;
 
 err_misc:
+	pm_runtime_disable(wdev->dev);
 	platform_set_drvdata(pdev, NULL);
 	iounmap(wdev->base);
 
@@ -371,6 +372,7 @@ static int __devexit omap_wdt_remove(struct platform_device *pdev)
 	struct omap_wdt_dev *wdev = platform_get_drvdata(pdev);
 	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
+	pm_runtime_disable(wdev->dev);
 	if (!res)
 		return -ENOENT;
 
-- 
1.7.1

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