drm-misc-next-fixes-2021-07-01

Thomas Zimmermann

@tzimmermann

f18f5801 · drm/radeon: Fix NULL dereference when updating memory stats · Jun 30, 2021

Short summary of fixes pull:

 * amdgpu: TTM fixes
 * dma-buf: Doc fixes
 * gma500: Fix potential BO leaks in error handling
 * radeon: Fix NULL-ptr deref