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gpu: nvgpu: Fix map buffer overflow handling.

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Currently in case of overflow in buffer mapping
the dma buf fd reference is not freed which causes
the handle to remain allocated forever.

Bug 200398767

Change-Id: Id3bf88636b927d75595f8a8b9f240b6717bf3b57
Signed-off-by: Ashutosh Jain <ashutoshj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1694864
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Ashutosh Jain
2018-04-13 21:20:54 +05:30
committed by mobile promotions
parent cc9f3d80e3
commit 89ffa669b6
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/nvgpu/common/linux/vm.c
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@@ -285,6 +285,7 @@ int nvgpu_vm_map_buffer(struct vm_gk20a *vm,
nvgpu_err(g,
"buf size %llx < (offset(%llx) + map_size(%llx))\n",
(u64)dmabuf->size, buffer_offset, mapping_size);
dma_buf_put(dmabuf);
return -EINVAL;
}