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-rw-r--r--libdrm/intel/intel_bufmgr_gem.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/libdrm/intel/intel_bufmgr_gem.c b/libdrm/intel/intel_bufmgr_gem.c
index e48778c3..89931d85 100644
--- a/libdrm/intel/intel_bufmgr_gem.c
+++ b/libdrm/intel/intel_bufmgr_gem.c
@@ -505,6 +505,7 @@ drm_intel_gem_bo_reference(drm_intel_bo *bo)
drm_intel_bufmgr_gem *bufmgr_gem = (drm_intel_bufmgr_gem *)bo->bufmgr;
drm_intel_bo_gem *bo_gem = (drm_intel_bo_gem *)bo;
+ assert(bo_gem->refcount > 0);
pthread_mutex_lock(&bufmgr_gem->lock);
bo_gem->refcount++;
pthread_mutex_unlock(&bufmgr_gem->lock);
@@ -515,6 +516,7 @@ drm_intel_gem_bo_reference_locked(drm_intel_bo *bo)
{
drm_intel_bo_gem *bo_gem = (drm_intel_bo_gem *)bo;
+ assert(bo_gem->refcount > 0);
bo_gem->refcount++;
}
@@ -549,6 +551,7 @@ drm_intel_gem_bo_unreference_locked(drm_intel_bo *bo)
drm_intel_bufmgr_gem *bufmgr_gem = (drm_intel_bufmgr_gem *)bo->bufmgr;
drm_intel_bo_gem *bo_gem = (drm_intel_bo_gem *)bo;
+ assert(bo_gem->refcount > 0);
if (--bo_gem->refcount == 0) {
struct drm_intel_gem_bo_bucket *bucket;
uint32_t tiling_mode;