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nouveau: fix disp disabling with GSP 

This func ptr here is normally static allocation, but gsp r535
uses a dynamic pointer, so we need to handle that better.

This fixes a crash with GSP when you use config=disp=0 to avoid
disp problems.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231222043308.3090089-4-airlied@gmail.com
This commit is contained in:
Dave Airlie 2023-12-22 14:31:52 +10:00 committed by Dave Airlie
parent 34ce62a51e
commit 7854ea0e40
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c
View File

@ -209,7 +209,7 @@ nvkm_disp_dtor(struct nvkm_engine *engine)
nvkm_head_del(&head);
}
if (disp->func->dtor)
if (disp->func && disp->func->dtor)
disp->func->dtor(disp);
return data;
@ -243,8 +243,10 @@ nvkm_disp_new_(const struct nvkm_disp_func *func, struct nvkm_device *device,
spin_lock_init(&disp->client.lock);
ret = nvkm_engine_ctor(&nvkm_disp, device, type, inst, true, &disp->engine);
if (ret)
if (ret) {
disp->func = NULL;
return ret;
}
if (func->super) {
disp->super.wq = create_singlethread_workqueue("nvkm-disp");