[PATCH 11/18] drm/armada: Don't grab dev->struct_mutex for in mmap offset ioctl

[Thierry Reding]

On Thu, Jul 09, 2015 at 11:32:43PM +0200, Daniel Vetter wrote:
> 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).
> 
> While at it also fix a leak when this ioctl is called on an imported
> buffer.
> 
> Cc: Russell King <rmk+kernel at arm.linux.org.uk>
> Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
> ---
>  drivers/gpu/drm/armada/armada_gem.c | 11 ++++-------
>  1 file changed, 4 insertions(+), 7 deletions(-)

Reviewed-by: Thierry Reding <treding at nvidia.com>
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