drm/tegra: Don't take dev->struct_mutex in mmap offset ioctl

Since David Herrmann's mmap vma manager rework we don't need to grab
dev->struct_mutex any more to prevent races when looking up the mmap
offset. Drop it and instead don't forget to use the unref_unlocked
variant (since the drm core still cares).

v2: Finally get rid of the copypasta from another commit in this
commit message. And convert to _unlocked like we need to (Patrik).

Cc: Patrik Jakobsson <[email protected]>
Cc: Thierry Reding <[email protected]>
Acked-by: Thierry Reding <[email protected]>
Reviewed-by: Patrik Jakobsson <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

0 files changed, 0 insertions, 0 deletions