From: Jon Derrick <jonathan.derrick@xxxxxxxxx> commit 307a312df9c43fdea286ad17f748aaf777cc434a upstream. Check bar1's new vmm creation return value for errors. Signed-off-by: Jon Derrick <jonathan.derrick@xxxxxxxxx> Signed-off-by: Ben Skeggs <bskeggs@xxxxxxxxxx> Signed-off-by: Sushma Kalakota <sushmax.kalakota@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.c @@ -174,6 +174,8 @@ nv50_bar_oneinit(struct nvkm_bar *base) ret = nvkm_vmm_new(device, start, limit-- - start, NULL, 0, &bar1_lock, "bar1", &bar->bar1_vmm); + if (ret) + return ret; atomic_inc(&bar->bar1_vmm->engref[NVKM_SUBDEV_BAR]); bar->bar1_vmm->debug = bar->base.subdev.debug;
