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Groups > linux.kernel > #1561178

[PATCH 1/2] [media] exynos-gsc: Fix unbalanced pm_runtime_enable() error

From Javier Martinez Canillas <javier@osg.samsung.com>
Newsgroups linux.kernel
Subject [PATCH 1/2] [media] exynos-gsc: Fix unbalanced pm_runtime_enable() error
Date 2017-01-18 01:40 +0100
Message-ID <t0Msa-5wG-11@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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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

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Thread

[PATCH 1/2] [media] exynos-gsc: Fix unbalanced pm_runtime_enable() error Javier Martinez Canillas <javier@osg.samsung.com> - 2017-01-18 01:40 +0100
  [PATCH 2/2] [media] exynos-gsc: Fix imprecise external abort due disabled power domain Javier Martinez Canillas <javier@osg.samsung.com> - 2017-01-18 01:40 +0100
    Re: [PATCH 2/2] [media] exynos-gsc: Fix imprecise external abort due  disabled power domain Marek Szyprowski <m.szyprowski@samsung.com> - 2017-01-19 15:20 +0100
      Re: [PATCH 2/2] [media] exynos-gsc: Fix imprecise external abort due  disabled power domain Javier Martinez Canillas <javier@osg.samsung.com> - 2017-01-19 16:00 +0100
        Re: [PATCH 2/2] [media] exynos-gsc: Fix imprecise external abort due  disabled power domain Javier Martinez Canillas <javier@osg.samsung.com> - 2017-01-19 19:00 +0100
          Re: [PATCH 2/2] [media] exynos-gsc: Fix imprecise external abort due  disabled power domain Marek Szyprowski <m.szyprowski@samsung.com> - 2017-01-20 09:40 +0100
            Re: [PATCH 2/2] [media] exynos-gsc: Fix imprecise external abort due  disabled power domain Javier Martinez Canillas <javier@osg.samsung.com> - 2017-01-20 11:10 +0100
              Re: [PATCH 2/2] [media] exynos-gsc: Fix imprecise external abort due  disabled power domain Javier Martinez Canillas <javier@osg.samsung.com> - 2017-01-20 11:50 +0100
        Re: [PATCH 2/2] [media] exynos-gsc: Fix imprecise external abort due  disabled power domain Marek Szyprowski <m.szyprowski@samsung.com> - 2017-01-20 09:20 +0100
          Re: [PATCH 2/2] [media] exynos-gsc: Fix imprecise external abort due  disabled power domain Javier Martinez Canillas <javier@osg.samsung.com> - 2017-01-20 11:10 +0100
          Re: [PATCH 2/2] [media] exynos-gsc: Fix imprecise external abort due  disabled power domain Javier Martinez Canillas <javier@osg.samsung.com> - 2017-01-20 14:40 +0100
  Re: [PATCH 1/2] [media] exynos-gsc: Fix unbalanced  pm_runtime_enable() error Javier Martinez Canillas <javier@osg.samsung.com> - 2017-01-19 15:20 +0100
  Re: [PATCH 1/2] [media] exynos-gsc: Fix unbalanced pm_runtime_enable()  error Marek Szyprowski <m.szyprowski@samsung.com> - 2017-01-19 15:20 +0100

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