From: Chad Versace <c...@kiwitree.net>

Don't pass NULL to drm_intel_bo_unreference(). It doesn't like that.

Bug found by code inspection.
---
 src/mesa/drivers/dri/i965/intel_syncobj.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/intel_syncobj.c 
b/src/mesa/drivers/dri/i965/intel_syncobj.c
index e500fa0..3bc32df 100644
--- a/src/mesa/drivers/dri/i965/intel_syncobj.c
+++ b/src/mesa/drivers/dri/i965/intel_syncobj.c
@@ -59,7 +59,9 @@ intel_delete_sync_object(struct gl_context *ctx, struct 
gl_sync_object *s)
 {
    struct intel_sync_object *sync = (struct intel_sync_object *)s;
 
-   drm_intel_bo_unreference(sync->bo);
+   if (sync->bo)
+      drm_intel_bo_unreference(sync->bo);
+
    free(sync);
 }
 
-- 
2.4.0

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