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

Javier Martinez Canillas javier at osg.samsung.com
Thu Jan 19 06:19:05 PST 2017

Hello Marek,

On 01/19/2017 11:12 AM, Marek Szyprowski wrote:
> Hi Javier,
> On 2017-01-18 01:30, Javier Martinez Canillas wrote:
>> 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 at osg.samsung.com>
> I must have mixed something during the rebase of the Ulf's patch, because
> the original one kept pm_runtime_disable in the right place:
> http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/317678.html
> I'm really sorry.

Ah, I see. No worries.

> Acked-by: Marek Szyprowski <m.szyprowski at samsung.com>

Thanks a lot for your review.

Best regards,
Javier Martinez Canillas
Open Source Group
Samsung Research America

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