[PATCH] modesetting: NULL assignment for drmmode_set_target_scanout_target_cpu

[Alex Goins]

Commit 80e64dae: "modesetting: Implement PRIME syncing as a sink" originally was
supposed to have this line, but it was dropped as part of the merge process.

Foregoing the NULL assignment causes a ton of problems with dereferencing
uninitialized memory.

Signed-off-by: Alex Goins <agoins at nvidia.com>
---
 hw/xfree86/drivers/modesetting/drmmode_display.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/xfree86/drivers/modesetting/drmmode_display.c b/hw/xfree86/drivers/modesetting/drmmode_display.c
index 4a3fdc5..2cdcad1 100644
--- a/hw/xfree86/drivers/modesetting/drmmode_display.c
+++ b/hw/xfree86/drivers/modesetting/drmmode_display.c
@@ -956,6 +956,7 @@ drmmode_set_target_scanout_pixmap_cpu(xf86CrtcPtr crtc, PixmapPtr ppix,
             DamageUnregister(ppriv->slave_damage);
             ppriv->slave_damage = NULL;
         }
+        *target = NULL;
     }
 
     if (!ppix)
-- 
1.9.1