drm/tegra: Prevent BOs from being freed during job submission

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Since DRM IOCTL's are lockless, there is a chance that BOs could be
released while a job submission is in progress. To avoid that, keep the
GEM reference until the job has been pinned, part of which will be to
take another reference.

v2: remove redundant check and avoid memory leak

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

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Dmitry Osipenko 2017-08-11 19:54:56 +02:00 • committed by Thierry Reding

parent a8bc8c6510

commit ec73c4cfe7

1 changed files with 31 additions and 9 deletions

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drivers/gpu/drm/tegra/drm.c

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