On Mon, May 22, 2023 at 10:18 PM Karol Herbst <kherbst@xxxxxxxxxx> wrote: > > This fixes a NULL pointer access inside nvkm_acr_oneinit in case necessary > firmware files couldn't be loaded. > > Closes: https://gitlab.freedesktop.org/drm/nouveau/-/issues/212 > Fixes: 4b569ded09fd ("drm/nouveau/acr/ga102: initial support") > Signed-off-by: Karol Herbst <kherbst@xxxxxxxxxx> > --- > drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c > index 795f3a649b12..6388234c352c 100644 > --- a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c > +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c > @@ -224,7 +224,7 @@ nvkm_acr_oneinit(struct nvkm_subdev *subdev) > u64 falcons; > int ret, i; > > - if (list_empty(&acr->hsfw)) { > + if (list_empty(&acr->hsfw) || !acr->func->wpr_layout) { Now thinking about this, it should probably also check acr->func... > nvkm_debug(subdev, "No HSFW(s)\n"); > nvkm_acr_cleanup(acr); > return 0; > -- > 2.40.1 >
