Re: [PATCH] drm/i915/guc: Don't leak stage descriptor pool on init failure

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On 05/06/18 05:05, Michal Wajdeczko wrote:
In case of failure during GuC clients creation, we forget to
cleanup earlier pool allocation. Use proper teardown to fix that.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Michal Winiarski <michal.winiarski@xxxxxxxxx>

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>

---
  drivers/gpu/drm/i915/intel_guc_submission.c | 5 ++++-
  1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_guc_submission.c b/drivers/gpu/drm/i915/intel_guc_submission.c
index 133367a..23e9f20 100644
--- a/drivers/gpu/drm/i915/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/intel_guc_submission.c
@@ -1157,7 +1157,7 @@ int intel_guc_submission_init(struct intel_guc *guc)
  	WARN_ON(!guc_verify_doorbells(guc));
  	ret = guc_clients_create(guc);
  	if (ret)
-		return ret;
+		goto err_pool;
for_each_engine(engine, dev_priv, id) {
  		guc->preempt_work[id].engine = engine;
@@ -1166,6 +1166,9 @@ int intel_guc_submission_init(struct intel_guc *guc)
return 0; +err_pool:
+	guc_stage_desc_pool_destroy(guc);
+	return ret;
  }
void intel_guc_submission_fini(struct intel_guc *guc)

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