Commit 15516bf9 authored by Jon Derrick's avatar Jon Derrick Committed by Ben Skeggs

drm/nouveau/mmu: qualify vmm during dtor

If the BAR initialization failed it may leave the vmm structure in an
unitialized state, leading to a null-pointer-dereference when the vmm is
dereferenced during teardown.
Signed-off-by: default avatarJon Derrick <jonathan.derrick@intel.com>
Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 12e08beb
...@@ -1783,7 +1783,7 @@ nvkm_vmm_get(struct nvkm_vmm *vmm, u8 page, u64 size, struct nvkm_vma **pvma) ...@@ -1783,7 +1783,7 @@ nvkm_vmm_get(struct nvkm_vmm *vmm, u8 page, u64 size, struct nvkm_vma **pvma)
void void
nvkm_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst) nvkm_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
{ {
if (inst && vmm->func->part) { if (inst && vmm && vmm->func->part) {
mutex_lock(&vmm->mutex); mutex_lock(&vmm->mutex);
vmm->func->part(vmm, inst); vmm->func->part(vmm, inst);
mutex_unlock(&vmm->mutex); mutex_unlock(&vmm->mutex);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment