drm/exynos/ipp: add file checks for ioctls
authorAndrzej Hajda <a.hajda@samsung.com>
Tue, 2 Sep 2014 12:56:21 +0000 (14:56 +0200)
committerInki Dae <daeinki@gmail.com>
Fri, 19 Sep 2014 15:56:13 +0000 (00:56 +0900)
Process should not have access to ipp nodes created by another
process. The patch adds necessary checks.
It also simplifies lookup for command node.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

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