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From 778bdac35c6979233dd6384dfba01eaa2a4b982b Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Tue, 26 Jul 2016 13:47:13 -0700
Subject: [PATCH] drm/vc4: Free hang state before destroying BO cache.
The BO cache will complain if BOs are still allocated when we try to
destroy it (since freeing those BOs would try to hit the cache). You
could hit this if you were to unload the module after a GPU hang.
Signed-off-by: Eric Anholt <eric@anholt.net>
Fixes: 214613656b51 ("drm/vc4: Add an interface for capturing the GPU state after a hang.")
(cherry picked from commit def96527707e1978a0c88e75d13b082f51460d5c)
---
drivers/gpu/drm/vc4/vc4_gem.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/vc4/vc4_gem.c
+++ b/drivers/gpu/drm/vc4/vc4_gem.c
@@ -968,8 +968,8 @@ vc4_gem_destroy(struct drm_device *dev)
vc4->overflow_mem = NULL;
}
- vc4_bo_cache_destroy(dev);
-
if (vc4->hang_state)
vc4_free_hang_state(dev, vc4->hang_state);
+
+ vc4_bo_cache_destroy(dev);
}
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