drm/i915: Avoid oops when capturing NULL ring for inactive pinned buffers
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 0b6052a..a8f55f0 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -575,7 +575,7 @@
err->tiling = obj->tiling_mode;
err->dirty = obj->dirty;
err->purgeable = obj->madv != I915_MADV_WILLNEED;
- err->ring = obj->ring->id;
+ err->ring = obj->ring ? obj->ring->id : 0;
if (++i == count)
break;