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Commit dceef5d87 (drm/nouveau/fb: initialise vram controller as pfb sub-object) moved some code around and introduced these null derefs. pfb->ram is set to the new ram object outside of this ctor. Reported-by: Ronald Uitermark <ronald645 at gmail.com> Tested-by: Ronald Uitermark <ronald645 at gmail.com> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu> --- drivers/gpu/drm/nouveau/core/subdev/fb/ramnv49.c | 12 ++++++------ drivers/gpu/drm/nouveau/core/subdev/fb/ramnv4e.c | 4 ++-- 2 files changed,...

Commit a55409066 ("drm/nv50-: map TTM_PL_SYSTEM through a BAR for CPU access") made it possible to work with tiled memory. However mem->mm_node is not a nouveau_mem for AGP-using pre-NV50 cards, but a drm_mm_node, as created by the ttm_bo_manager_func. As such, extend the untiled check to explicitly include all pre-nv50 cards. Reported-by: Ronald <ronald645 at gmail.com>

...okech.com> Romain Izard <romain.izard.pro@gmail.com> Romain Kuntz <r.kuntz@ipflavors.com> Roman Gushchin <klamm@yandex-team.ru> Roman Ovchinnikov <coolthecold@gmail.com> Roman Schneider <schneider@at.festo.com> Ronald <ronald645@gmail.com> Ronald Uitermark <ronald645@gmail.com> Ronald Wahl <ronald.wahl@raritan.com> Rong Wang <Rong.Wang@csr.com> Rongjun Ying <Rongjun.Ying@csr.com> RongQing.Li <roy.qing.li@gmail.com> Ronny Hegewald <ronny.hegewald@online.de> Ronny Standtke <ronny.standtke@gmx.net>...

...okech.com> Romain Izard <romain.izard.pro@gmail.com> Romain Kuntz <r.kuntz@ipflavors.com> Roman Gushchin <klamm@yandex-team.ru> Roman Ovchinnikov <coolthecold@gmail.com> Roman Schneider <schneider@at.festo.com> Ronald <ronald645@gmail.com> Ronald Uitermark <ronald645@gmail.com> Ronald Wahl <ronald.wahl@raritan.com> Rong Wang <Rong.Wang@csr.com> Rongjun Ying <Rongjun.Ying@csr.com> RongQing.Li <roy.qing.li@gmail.com> Ronny Hegewald <ronny.hegewald@online.de> Ronny Standtke <ronny.standtke@gmx.net>...