diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 0e847d7ee0f3..becde55b02a3 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -742,6 +742,7 @@ static int execlists_context_pin(struct intel_engine_cs *engine,
 
 	if (ce->pin_count++)
 		return 0;
+	GEM_BUG_ON(!ce->pin_count); /* no overflow please! */
 
 	if (!ce->state) {
 		ret = execlists_context_deferred_alloc(ctx, engine);
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 1befcdf9b646..d9b8d17c3fc6 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1445,6 +1445,7 @@ static int intel_ring_context_pin(struct intel_engine_cs *engine,
 
 	if (ce->pin_count++)
 		return 0;
+	GEM_BUG_ON(!ce->pin_count); /* no overflow please! */
 
 	if (ce->state) {
 		ret = context_pin(ctx);