[PATCH 2/3] xfree86: return NULL for compat output if no outputs.
Adam Jackson
ajax at redhat.com
Tue Oct 29 17:09:26 CET 2013
From: Dave Airlie <airlied at redhat.com>
With outputless GPUs showing up we crash here if there are not outputs
try and recover with a bit of grace.
Reviewed-by: Adam Jackson <ajax at redhat.com>
Signed-off-by: Dave Airlie <airlied at redhat.com>
---
hw/xfree86/modes/xf86Crtc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hw/xfree86/modes/xf86Crtc.c b/hw/xfree86/modes/xf86Crtc.c
index 35845e8..ca829e8 100644
--- a/hw/xfree86/modes/xf86Crtc.c
+++ b/hw/xfree86/modes/xf86Crtc.c
@@ -1863,6 +1863,9 @@ SetCompatOutput(xf86CrtcConfigPtr config)
DisplayModePtr maxmode = NULL, testmode, mode;
int o, compat = -1, count, mincount = 0;
+ if (config->num_output == 0)
+ return NULL;
+
/* Look for one that's definitely connected */
for (o = 0; o < config->num_output; o++) {
test = config->output[o];
--
1.8.3.1
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