[PATCH 1/2] xf86: actually set the compat output in the failure case

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

The previous fix for the previous fix, didn't fully work,

If we don't set compat_output we end up doing derferences
of arrays with -1, leading to valgrind warnings.

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 hw/xfree86/modes/xf86Crtc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/hw/xfree86/modes/xf86Crtc.c b/hw/xfree86/modes/xf86Crtc.c
index 77a0218..45764fc 100644
--- a/hw/xfree86/modes/xf86Crtc.c
+++ b/hw/xfree86/modes/xf86Crtc.c
@@ -1848,8 +1848,10 @@ SetCompatOutput(xf86CrtcConfigPtr config)
     }
 
     /* All outputs are disconnected, select one to fake */
-    if (!output && config->num_output)
-        output = config->output[0];
+    if (!output && config->num_output) {
+        config->compat_output = 0;
+        output = config->output[config->compat_output];
+    }
 
     return output;
 }
-- 
1.8.1