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Ketan Patil ee71e72f4e video: tegra: nvmap: Do not decrement handle's refcount 
Do not decrement handle's refcount until allocation function is
completed. If there is a data race between nvmap_ioctl_alloc and
nvmap_ioctl_free, the dma-buf/handle can get freed before last access
to dmabuf in nvmap_ioctl_alloc.

Bug 4253472

Change-Id: Idbcee278df645389f85ad03d48fa7baa76a7213d
Signed-off-by: Ketan Patil <ketanp@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2969182
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2971778
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
2023-09-01 19:51:11 -07:00
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tegra
video: tegra: nvmap: Do not decrement handle's refcount
2023-09-01 19:51:11 -07:00