drm/i915/selftests: fix error handling in __live_lrc_indirect_ctx_bb()

static int __live_lrc_indirect_ctx_bb(struct intel_engine_cs *engine)

{

	struct intel_context *a, *b;

	int err = 0;

	int err;

	a = intel_context_create(engine);

	b = intel_context_create(engine);

	if (IS_ERR(a))

		return PTR_ERR(a);

	err = intel_context_pin(a);

	if (err)

		return err;

		goto put_a;

	err = intel_context_pin(b);

	if (err) {

		intel_context_put(a);

		return err;

	b = intel_context_create(engine);

	if (IS_ERR(b)) {

		err = PTR_ERR(b);

		goto unpin_a;

	}

	err = intel_context_pin(b);

	if (err)

		goto put_b;

	/* We use the already reserved extra page in context state */

	if (!a->wa_bb_page) {

		GEM_BUG_ON(b->wa_bb_page);

		GEM_BUG_ON(INTEL_GEN(engine->i915) == 12);

		goto out;

		goto unpin_b;

	}

	/*

	err = indirect_ctx_bb_check(a);

	if (err)

		goto out;

		goto unpin_b;

	err = indirect_ctx_bb_check(b);

out:

unpin_b:

	intel_context_unpin(b);

put_b:

	intel_context_put(b);

unpin_a:

	intel_context_unpin(a);

put_a:

	intel_context_put(a);

	return err;