From 0ed1db1aad5f529b32cf45848b842b374406a5be Mon Sep 17 00:00:00 2001
From: John Baldwin <jhb@FreeBSD.org>
Date: Fri, 8 Apr 2022 17:25:14 -0700
Subject: [PATCH] arm bus_dma_tag_destroy: Move dmat_copy under #ifdef KTR.

---
 sys/arm/arm/busdma_machdep.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sys/arm/arm/busdma_machdep.c b/sys/arm/arm/busdma_machdep.c
index a754cb13ddc5..ccf593b11aa5 100644
--- a/sys/arm/arm/busdma_machdep.c
+++ b/sys/arm/arm/busdma_machdep.c
@@ -535,11 +535,12 @@ bus_dma_tag_set_domain(bus_dma_tag_t dmat, int domain)
 int
 bus_dma_tag_destroy(bus_dma_tag_t dmat)
 {
-	bus_dma_tag_t dmat_copy;
+#ifdef KTR
+	bus_dma_tag_t dmat_copy = dmat;
+#endif
 	int error;
 
 	error = 0;
-	dmat_copy = dmat;
 
 	if (dmat != NULL) {
 		if (dmat->map_count != 0) {