dt c1b302652e gpu: nvgpu: Add fix for dev_node leak ...

This is adding fix for dev_node leak when user_deinit
called.
The dev_nodes in linux are created in two phases. In first
phase the power dev_nodes(one for legacy and other for v2)
are created. The second phase other dev_nodes are created.
While creating the dev_nodes the power cdev_region overwritten
by cdev_region. This is fixed by introducing new cdev_region and
updating respective nodes.

JIRA NVGPU-6721

Change-Id: Iec78db8e5fe40cc0b14fb3fecc35b8881dff716f
Signed-off-by: dt <dt@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2535265
Reviewed-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Lakshmanan M <lm@nvidia.com>
Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2021-05-28 11:39:58 -07:00

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