[PATCH v2 2/2] XXX: drm/i915: check engine_id is really always valid

[Michel Thierry]

Signed-off-by: Michel Thierry <michel.thierry at intel.com>
---
 drivers/gpu/drm/i915/i915_gpu_error.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 5aa284412e38..60c43acefdeb 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -36,6 +36,8 @@
 
 static const char *engine_str(struct drm_i915_private *i915, int engine_id)
 {
+	GEM_BUG_ON(engine_id == -1);
+	GEM_BUG_ON(engine_id >= I915_NUM_ENGINES);
 	return i915->engine[engine_id];
 }
 
-- 
2.15.1