drm/nouveau/ttm: avoid using nouveau_drm.ttm.type_vram prior to nv50
Pre-NV50 chipsets don't currently use the MMU subsystem that later chipsets use, and type_vram is negative here, leading to an OOB memory access. This was previously guarded by a chipset check, restore that. Reported-by:Thomas Zimmermann <tzimmermann@suse.de> Fixes: 5839172f ("drm/nouveau: explicitly specify caching to use") Signed-off-by:
Ben Skeggs <bskeggs@redhat.com>
parent
630f5122
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