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gpu: host1x: Plug potential memory leak

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The memory allocated for a DMA fence could be leaked if the code failed
to allocate the waiter object. Make sure to release the fence allocation
on failure.

Change-Id: Ie5608246225f17883d005b7975bed1ca4742b321
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2604935
(cherry picked from commit 3142088147c0a8b69cd692405c98a9cdb96b6006)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2605432
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Thierry Reding
2021-09-02 22:33:09 +02:00
committed by Laxman Dewangan
parent f6e4773a0d
commit d42946f160
1 changed files with 3 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/host1x/fence.c
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@@ -149,8 +149,10 @@ struct dma_fence *host1x_fence_create(struct host1x_syncpt *sp, u32 threshold)
return ERR_PTR(-ENOMEM);
fence->waiter = kzalloc(sizeof(*fence->waiter), GFP_KERNEL);
if (!fence->waiter)
if (!fence->waiter) {
kfree(fence);
return ERR_PTR(-ENOMEM);
}
fence->sp = sp;
fence->threshold = threshold;