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drm/exynos: g2d: make ioctls more robust
authorTobias Jakobi <tjakobi@math.uni-bielefeld.de>
Wed, 23 Jul 2014 14:57:12 +0000 (16:57 +0200)
committerInki Dae <inki.dae@samsung.com>
Mon, 4 Aug 2014 04:39:28 +0000 (13:39 +0900)
commit1cd1ea565f3ece26dff3a94bf73e4f6caae140b9
tree45fd7753722b2795c9f81134beed6fb68c664be1tree | snapshot (tar.gz zip)
parent9d1e25c9982b97f5f3f2b9c885e823ee58a9fb3dcommit | diff
drm/exynos: g2d: make ioctls more robust

Both exynos_g2d_set_cmdlist_ioctl and exynos_g2d_exec_ioctl don't check
if the G2D was succesfully probe. If that is not the case, then g2d_priv
is just NULL and extracting 'dev' from it in the next step  is going to
produce a kernel oops.

Add proper checks and return ENODEV if the G2D is not available.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: INki Dae <inki.dae@samsung.com>
drivers/gpu/drm/exynos/exynos_drm_g2d.c diff | blob | blame | history