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drm/vmwgfx: Also check for crtc status while checking for DU active

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During modeset check it is possible to have all crtc_state's in atomic
state. Check for crtc enable status while checking for display unit
active status. Only error if enabling a crtc while display unit is not
active.

Cc: <stable@vger.kernel.org>
Fixes: 9da6e26c0a: ("drm/vmwgfx: Fix a layout race condition")
Signed-off-by: Deepak Rawat <drawat@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
This commit is contained in:
Deepak Rawat 2018-12-21 14:38:35 -08:00 committed by Thomas Hellstrom
parent 51fdbeb4ca
commit 479d59026f
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
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@ -1646,7 +1646,7 @@ static int vmw_kms_check_topology(struct drm_device *dev,
struct drm_connector_state *conn_state;
struct vmw_connector_state *vmw_conn_state;
if (!du->pref_active) {
if (!du->pref_active && new_crtc_state->enable) {
ret = -EINVAL;
goto clean;
}