[PATCH v2 0/3] nouveau: fix 3 null-ptr derefs

[Jim Cromie via B4 Relay]

These 3 patches fix NULL ptr derefs I hit while booting kernels with
unrelated work (dynamic-debug) on a 2019 amdgpu+noueau laptop.  One of
them is possibly hard to reproduce, the others are "dependable".

Signed-off-by: Jim Cromie <jim.cromie@xxxxxxxxx>
---
Changes in v2:
- added check of gsp->rm into nvkm_gsp_rm(gsp)
- change if-then-else to if-early-fail, fallthru
- Link to v1: https://lore.kernel.org/r/20261002-my-fixups-v1-0-a83d20f9d3fe@xxxxxxxxx

---
Jim Cromie (3):
      nouveau: Fix NULL pointer dereferences in GETPARAM ioctl
      nouveau: Fix NULL pointer dereference in GET_ZCULL_INFO ioctl
      nouveau: Fix NULL dereference in nvkm_gsp_gcx_ready()

 drivers/gpu/drm/nouveau/include/nvkm/subdev/gsp.h |  2 +-
 drivers/gpu/drm/nouveau/nouveau_abi16.c           | 24 ++++++++++++++++++++---
 drivers/gpu/drm/nouveau/nvkm/engine/device/user.c |  2 +-
 drivers/gpu/drm/nouveau/nvkm/subdev/gsp/base.c    |  2 +-
 4 files changed, 24 insertions(+), 6 deletions(-)
---
base-commit: 72d3fcf802c45d00b300f25b848a93c3a2bd7c7e
change-id: 20261002-my-fixups-324d25f3bd05

Best regards,
-- 
Jim Cromie <jim.cromie@xxxxxxxxx>