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drm: Ensure universal_planes is set for atomic

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Atomic doesn't really work without universal planes anyway. But make
sure that evil userspace doesn't pull the kernel over the table
because we didn't consider a cornercase that just doesn't make sense,
just for safety.

v2: Just force ->universal_planes to the same value to avoid imposing
restrictions on userspace.

Cc: Rob Clark <robdclark@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
This commit is contained in:
Daniel Vetter 2014-12-19 10:33:52 +01:00
parent a97df1ccd3
commit 179f158ccf
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/drm_ioctl.c
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@ -355,6 +355,7 @@ drm_setclientcap(struct drm_device *dev, void *data, struct drm_file *file_priv)
if (req->value > 1) if (req->value > 1)
return -EINVAL; return -EINVAL;
file_priv->atomic = req->value; file_priv->atomic = req->value;
file_priv->universal_planes = req->value;
break; break;
default: default:
return -EINVAL; return -EINVAL;