dma-buf: fix unintended pin/unpin warnings
DMA-buf internal users call the pin/unpin functions without having a dynamic attachment. Avoid the warning and backtrace in the logs. Signed-off-by:Christian König <christian.koenig@amd.com> Bugs: https://gitlab.freedesktop.org/drm/intel/-/issues/3481 Fixes: c545781e ("dma-buf: doc polish for pin/unpin") Reviewed-by:
Alex Deucher <alexander.deucher@amd.com> Reviewed-by:
Daniel Vetter <daniel.vetter@ffwll.ch> CC: stable@kernel.org Link: https://patchwork.freedesktop.org/patch/msgid/20210517115705.2141-1-christian.koenig@amd.com
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