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From: Javier Martinez Canillas <javier@osg.samsung.com>
To: linux-kernel@vger.kernel.org
Cc: Inki Dae <inki.dae@samsung.com>,
	Andi Shyti <andi.shyti@samsung.com>,
	Shuah Khan <shuahkh@osg.samsung.com>,
	Javier Martinez Canillas <javier@osg.samsung.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	Kukjin Kim <kgene@kernel.org>,
	linux-samsung-soc@vger.kernel.org,
	Sylwester Nawrocki <s.nawrocki@samsung.com>,
	linux-media@vger.kernel.org,
	Krzysztof Kozlowski <krzk@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	Ulf Hansson <ulf.hansson@linaro.org>
Subject: [PATCH 1/2] [media] exynos-gsc: Fix unbalanced pm_runtime_enable() error
Date: Tue, 17 Jan 2017 21:30:00 -0300	[thread overview]
Message-ID: <1484699402-28738-1-git-send-email-javier@osg.samsung.com> (raw)

Commit a006c04e6218 ("[media] exynos-gsc: Fixup clock management at
->remove()") changed the driver's .remove function logic to fist do
a pm_runtime_get_sync() to make sure the device is powered before
attempting to gate the gsc clock.

But the commit also removed a pm_runtime_disable() call that leads
to an unbalanced pm_runtime_enable() error if the driver is removed
and re-probed:

exynos-gsc 13e00000.video-scaler: Unbalanced pm_runtime_enable!
exynos-gsc 13e10000.video-scaler: Unbalanced pm_runtime_enable!

Fixes: a006c04e6218 ("[media] exynos-gsc: Fixup clock management at ->remove()")
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
---

 drivers/media/platform/exynos-gsc/gsc-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c
index cbf75b6194b4..83272f10722d 100644
--- a/drivers/media/platform/exynos-gsc/gsc-core.c
+++ b/drivers/media/platform/exynos-gsc/gsc-core.c
@@ -1118,6 +1118,7 @@ static int gsc_remove(struct platform_device *pdev)
 		clk_disable_unprepare(gsc->clock[i]);
 
 	pm_runtime_put_noidle(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
 
 	dev_dbg(&pdev->dev, "%s driver unloaded\n", pdev->name);
 	return 0;
-- 
2.7.4

             reply	other threads:[~2017-01-18  0:31 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20170118003024epcas5p34baff888a902351d9168d74f5ecbf293@epcas5p3.samsung.com>
2017-01-18  0:30 ` Javier Martinez Canillas [this message]
2017-01-18  0:30   ` [PATCH 2/2] [media] exynos-gsc: Fix imprecise external abort due disabled power domain Javier Martinez Canillas
2017-01-19 14:17     ` Marek Szyprowski
2017-01-19 14:56       ` Javier Martinez Canillas
2017-01-19 17:51         ` Javier Martinez Canillas
2017-01-20  8:37           ` Marek Szyprowski
2017-01-20 10:06             ` Javier Martinez Canillas
2017-01-20 10:46               ` Javier Martinez Canillas
2017-01-20  8:08         ` Marek Szyprowski
2017-01-20 10:01           ` Javier Martinez Canillas
2017-01-20 13:36           ` Javier Martinez Canillas
2017-01-19 14:12   ` [PATCH 1/2] [media] exynos-gsc: Fix unbalanced pm_runtime_enable() error Marek Szyprowski
2017-01-19 14:19     ` Javier Martinez Canillas

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