tree 8e5091f95dc74616cb5aab8560f8a0b7d1b8e577
parent 63774069d9527a1aeaa4aa20e929ef5e8e9ecc38
author Thomas Hellstrom <thellstrom@vmware.com> 1490606485 +0200
committer Thomas Hellstrom <thellstrom@vmware.com> 1490867019 +0200

drm/ttm, drm/vmwgfx: Relax permission checking when opening surfaces

Previously, when a surface was opened using a legacy (non prime) handle,
it was verified to have been created by a client in the same master realm.
Relax this so that opening is also allowed recursively if the client
already has the surface open.

This works around a regression in svga mesa where opening of a shared
surface is used recursively to obtain surface information.

Cc: <stable@vger.kernel.org>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>