tree 7b206afa78f4ea6abda6afc194fb1642b3513857
parent bf89209a6de37074e3ccdb7b40500798de750698
author Daniel Vetter <daniel.vetter@ffwll.ch> 1436477560 +0200
committer Daniel Vetter <daniel.vetter@ffwll.ch> 1439206647 +0200

drm/cirrus: Don't grab dev->struct_mutex for 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).

Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>