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Make xf86CompatOutput() return NULL when there are no privates 

Some drivers (mach64 w/o DRI for instance) don't initialize privates.

Signed-off-by: Matthieu Herrb <matthieu.herrb@laas.fr>
(cherry picked from commit 80eeff3eba)
This commit is contained in:
Matthieu Herrb 2021-10-31 11:28:28 +01:00 committed by Povilas Kanapickas
parent fdb266ff81
commit db0da823f5
1 changed files with 3 additions and 0 deletions
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3
hw/xfree86/modes/xf86Crtc.h
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@ -839,6 +839,9 @@ xf86CompatOutput(ScrnInfoPtr pScrn)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
if (xf86CrtcConfigPrivateIndex == -1)
return NULL;
if (config->compat_output < 0)
return NULL;
return config->output[config->compat_output];