[PATCH] drm: tegra: fix NULL deref in debugfs/iova

[Thierry Reding]

On Mon, Aug 14, 2017 at 11:53:45PM +0200, Michał Mirosław wrote:
> When IOMMU is off, ->mm_lock is not initialized and ->mm is NULL.
> 
> Signed-off-by: Michał Mirosław <mirq-linux at rere.qmqm.pl>
> ---
>  drivers/gpu/drm/tegra/drm.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)

Applied, thanks!

Thierry
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