Re: [PATCH] PCI: tegra: fix runtime pm imbalance on error

From: Thierry Reding
Date: Wed May 20 2020 - 05:40:46 EST


On Wed, May 20, 2020 at 04:40:12PM +0800, Dinghao Liu wrote:
> pm_runtime_get_sync() increments the runtime PM usage counter even
> it returns an error code. Thus a pairing decrement is needed on

s/even it/even when it/

> the error handling path to keep the counter balanced.
>
> Also This driver forgets to call pm_runtime_disable() when

s/Also This/Also this/

> pm_runtime_get_sync() returns an error code.
>
> Signed-off-by: Dinghao Liu <dinghao.liu@xxxxxxxxxx>
> ---
> drivers/pci/controller/pci-tegra.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)

Otherwise looks correct. It's came as somewhat of a surprise to me that
pm_runtime_get_sync() increments the usage counter even on failure, but
it does indeed.

With the above fixes to the commit message:

Acked-by: Thierry Reding <treding@xxxxxxxxxx>

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