[+Rajneesh]
Am 2020-06-17 um 3:02 p.m. schrieb Alex Deucher:
> The call to pm_runtime_get_sync increments the counter even in case of
> failure, leading to incorrect ref count.
> In case of failure, decrement the ref count before returning.
>
> Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehl...@amd.com>
> ---
> drivers/gpu/drm/amd/amdkfd/kfd_process.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
> b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
> index a9a7f5aa2710..0b4f40905f55 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
> @@ -1116,8 +1116,10 @@ struct kfd_process_device
> *kfd_bind_process_to_device(struct kfd_dev *dev,
> */
> if (!pdd->runtime_inuse) {
> err = pm_runtime_get_sync(dev->ddev->dev);
> - if (err < 0)
> + if (err < 0) {
> + pm_runtime_put_autosuspend(dev->ddev->dev);
> return ERR_PTR(err);
> + }
> }
>
> err = kfd_iommu_bind_process_to_device(pdd);
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