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drm/nouveau: shut lockdep up if last vm ref needs to destroy pgd

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2011-06-08 18:40:34 +10:00
parent 06b75e3552
commit 15ba79ad44
1 changed files with 11 additions and 8 deletions
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19
drivers/gpu/drm/nouveau/nouveau_vm.c
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@ -369,23 +369,26 @@ nouveau_vm_link(struct nouveau_vm *vm, struct nouveau_gpuobj *pgd)
}
static void
nouveau_vm_unlink(struct nouveau_vm *vm, struct nouveau_gpuobj *pgd)
nouveau_vm_unlink(struct nouveau_vm *vm, struct nouveau_gpuobj *mpgd)
{
struct nouveau_vm_pgd *vpgd, *tmp;
struct nouveau_gpuobj *pgd = NULL;
if (!pgd)
if (!mpgd)
return;
mutex_lock(&vm->mm->mutex);
list_for_each_entry_safe(vpgd, tmp, &vm->pgd_list, head) {
if (vpgd->obj != pgd)
continue;
list_del(&vpgd->head);
nouveau_gpuobj_ref(NULL, &vpgd->obj);
kfree(vpgd);
if (vpgd->obj == mpgd) {
pgd = vpgd->obj;
list_del(&vpgd->head);
kfree(vpgd);
break;
}
}
mutex_unlock(&vm->mm->mutex);
nouveau_gpuobj_ref(NULL, &pgd);
}
static void