=== patch --dry-run --forward output (proves fix.diff applies cleanly) ===
cmd: cd /usr/src && patch -p1 --dry-run --forward < DF-1453.diff

APPLIES_OK (verified 2026-07-21 on with-src #0 baseline)

--- fix.diff hunk summary ---
@@ -1163,6 +1163,11 @@
+	if (tv_dac == NULL) {
+		DRM_ERROR("tv_dac enc_priv is NULL\n");
+		return;
+	}