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Yes the help text is unhelpful, but atomic drivers should never use this. Just grab the lock without context or anything. Also an aside: Checking ->active like this doesn't protect against nonblocking commits, this is rather bogus. Cc: Thierry Reding <thierry.reding@gmail.com> Acked-by: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170322215058.8671-8-daniel.vetter@ffwll.ch