[PATCH] drm/i915: Warn there are any unfreed contexts when we shutdown

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When tearing down the device, emit a warning if there are any contexts
remaining, as they all should be freed by this point.

Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxxxxx>
Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/i915_gem_context.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index e5acc3916f75..82339b45cc9b 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -437,6 +437,8 @@ void i915_gem_context_fini(struct drm_device *dev)
 
 	i915_gem_context_unreference(dctx);
 	dev_priv->kernel_context = NULL;
+
+	WARN_ON(!list_empty(&dev_priv->context_list));
 }
 
 int i915_gem_context_enable(struct drm_i915_gem_request *req)
-- 
2.8.1

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