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gpu: nvgpu: fix memory fault in invalid_pd_alloc

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nvgpu_pd_alloc() calls gk20a_from_vm which is extracting g from
vm->mm->g without assigning mm pointer to vm->mm. Assigning the
pointers.

Bug 200577095

Change-Id: Ibe2757b0616fd8e87df509abe5d85e90d989d45c
Signed-off-by: Prateek sethi <prsethi@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2264751
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-by: Philip Elcan <pelcan@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: Shashank Singh <shashsingh@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Prateek sethi
2019-12-18 16:35:33 +05:30
committed by Alex Waterman
parent ae8f71a462
commit 28d21878a7
1 changed files with 3 additions and 0 deletions
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3
userspace/units/mm/gmmu/pd_cache/pd_cache.c
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@@ -350,6 +350,9 @@ int test_pd_alloc_invalid_input(struct unit_module *m, struct gk20a *g,
struct nvgpu_gmmu_pd pd;
u32 i, garbage[] = { 0U, 128U, 255U, 4095U, 3000U, 128U, 2049U };
g->mm.g = g;
vm.mm = &g->mm;
if (g->mm.pd_cache != NULL) {
unit_return_fail(m, "pd_cache already inited\n");
}