drm/exynos: g2d: make ioctls more robust

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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>

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Tobias Jakobi 2014-07-23 16:57:12 +02:00 • committed by Inki Dae

parent 9d1e25c998

commit 1cd1ea565f

1 changed files with 10 additions and 2 deletions

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drivers/gpu/drm/exynos/exynos_drm_g2d.c

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