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drm: fix drm_drv_uses_atomic_modeset on non modesetting drivers. 

vgem seems to oops on the intel CI due to the vgem debugfs init
hitting this path now.

Check if we have mode_config funcs before checking one.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180918062018.24942-1-airlied@gmail.com
This commit is contained in:
Dave Airlie 2018-09-18 16:20:18 +10:00 committed by Daniel Vetter
parent 3c499ea0c6
commit 57078338b2
1 changed files with 1 additions and 1 deletions
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2
include/drm/drm_drv.h
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@ -675,7 +675,7 @@ static inline bool drm_core_check_feature(struct drm_device *dev, int feature)
static inline bool drm_drv_uses_atomic_modeset(struct drm_device *dev)
{
return drm_core_check_feature(dev, DRIVER_ATOMIC) ||
dev->mode_config.funcs->atomic_commit != NULL;
(dev->mode_config.funcs && dev->mode_config.funcs->atomic_commit != NULL);
}