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gpu: nvgpu: fix some assertion/nvgpu_safe* APIs call in devctl path

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Fix following issues in devctl processing path
- Remove assertion for kind>=0. It is already checked in function
  nvgpu_vm_do_map.
- Check for possible overflow of map_addr and mapping size without using
  nvgpu_safe* API for NVGPU_AS_DEVCTL_MAP_BUFFER_EX and
  NVGPU_AS_DEVCTL_ALLOC_SPACE devctl.

Jira NVGPU-6496

Change-Id: I569c89d50900100f57bc9727fd032d6cd2c331e4
Signed-off-by: shashank singh <shashsingh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2487550
(cherry picked from commit 6d340d7e73ba8e031f50679991d259daa682a006)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2492291
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
shashank singh
2021-02-22 12:10:39 +05:30
committed by mobile promotions
parent b91f57d933
commit 1d86da257b
3 changed files with 10 additions and 6 deletions
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1
drivers/gpu/nvgpu/common/mm/vm.c
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@@ -1536,7 +1536,6 @@ int nvgpu_vm_map(struct vm_gk20a *vm,
mapped_buffer->pgsz_idx = binfo.pgsz_idx;
mapped_buffer->vm = vm;
mapped_buffer->flags = binfo.flags;
nvgpu_assert(map_key_kind >= 0);
mapped_buffer->kind = map_key_kind;
mapped_buffer->va_allocated = va_allocated;
mapped_buffer->vm_area = vm_area;