From: Michal Wajdeczko Date: Thu, 11 Oct 2018 13:00:08 +0000 (+0000) Subject: drm/i915: Inject load failure inside intel_engines_init_mmio X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=645ff9e371718476c77bfcd315f26d46ef587808;p=linux.git drm/i915: Inject load failure inside intel_engines_init_mmio We need extra load failure point to better test error path in i915_driver_init_mmio. Suggested-by: Chris Wilson Signed-off-by: Michal Wajdeczko Cc: Chris Wilson Reviewed-by: Chris Wilson Signed-off-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20181011130008.24640-2-michal.wajdeczko@intel.com --- diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c index 1c6143bdf5a46..f27dbe26bcc18 100644 --- a/drivers/gpu/drm/i915/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/intel_engine_cs.c @@ -337,6 +337,9 @@ int intel_engines_init_mmio(struct drm_i915_private *dev_priv) WARN_ON(ring_mask & GENMASK(BITS_PER_TYPE(mask) - 1, I915_NUM_ENGINES)); + if (i915_inject_load_failure()) + return -ENODEV; + for (i = 0; i < ARRAY_SIZE(intel_engines); i++) { if (!HAS_ENGINE(dev_priv, i)) continue;