diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c
index 8320eab7ac3690310084486b989eea2313be9c6e..71e664fc87e9d217cd2bbfe12ee04533f8323309 100644
--- a/drivers/gpu/drm/i915/gt/selftest_lrc.c
+++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c
@@ -1460,18 +1460,17 @@ static int __lrc_isolation(struct intel_engine_cs *engine, u32 poison)
 	}
 
 	err = poison_registers(B, poison, sema);
-	if (err) {
-		WRITE_ONCE(*sema, -1);
-		i915_request_put(rq);
-		goto err_result1;
-	}
-
-	if (i915_request_wait(rq, 0, HZ / 2) < 0) {
-		i915_request_put(rq);
+	if (err == 0 && i915_request_wait(rq, 0, HZ / 2) < 0) {
+		pr_err("%s(%s): wait for results timed out\n",
+		       __func__, engine->name);
 		err = -ETIME;
-		goto err_result1;
 	}
+
+	/* Always cancel the semaphore wait, just in case the GPU gets stuck */
+	WRITE_ONCE(*sema, -1);
 	i915_request_put(rq);
+	if (err)
+		goto err_result1;
 
 	err = compare_isolation(engine, ref, result, A, poison);