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msm: kgsl: Return a valid entry in case of secure GPU address

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Currently kgsl_sharedmem_find always returns NULL in case of a secure GPU
address as the address would not be part of process pagetable. This can
lead to not freeing secure memory as part of kgsl_ioctl_sharedmem_free.
Fix this by also checking if the address lies in the secure pagetable
range before returning NULL.

Change-Id: I79b5686a8fcaf580fc79b8f528b91c987f9138a9
Signed-off-by: Puranam V G Tejaswi <pvgtejas@codeaurora.org>
This commit is contained in:
Puranam V G Tejaswi 2021-03-08 14:38:46 +05:30
commit ab30b65f61
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/msm/kgsl.c
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@ -1200,7 +1200,9 @@ kgsl_sharedmem_find(struct kgsl_process_private *private, uint64_t gpuaddr)
if (!private)
return NULL;
if (!kgsl_mmu_gpuaddr_in_range(private->pagetable, gpuaddr))
if (!kgsl_mmu_gpuaddr_in_range(private->pagetable, gpuaddr) &&
!kgsl_mmu_gpuaddr_in_range(
private->pagetable->mmu->securepagetable, gpuaddr))
return NULL;
spin_lock(&private->mem_lock);