From 6dfb0593272d9b56a72bc5c5f286ebcc5fafd427 Mon Sep 17 00:00:00 2001
From: Taylor R Campbell <riastradh@NetBSD.org>
Date: Tue, 1 Feb 2022 02:00:29 +0000
Subject: [PATCH 01/13] fixup! driver(9): Fix synchronization of
 devsw_attach/lookup/detach.

---
 sys/kern/subr_devsw.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sys/kern/subr_devsw.c b/sys/kern/subr_devsw.c
index 9da96cf29e0f..3e8ed1b17dbf 100644
--- a/sys/kern/subr_devsw.c
+++ b/sys/kern/subr_devsw.c
@@ -286,8 +286,8 @@ bdevsw_attach(const struct bdevsw *devsw, devmajor_t *devmajor)
 		KASSERT(bdevsw == bdevsw0);
 		newbdevsw = kmem_zalloc(MAXDEVSW * sizeof(newbdevsw[0]),
 		    KM_NOSLEEP);
-                if (newbdevsw == NULL)
-                        return ENOMEM;
+		if (newbdevsw == NULL)
+			return ENOMEM;
 		memcpy(newbdevsw, bdevsw, max_bdevsws * sizeof(bdevsw[0]));
 		atomic_store_release(&bdevsw, newbdevsw);
 		atomic_store_release(&max_bdevsws, MAXDEVSW);
@@ -350,8 +350,8 @@ cdevsw_attach(const struct cdevsw *devsw, devmajor_t *devmajor)
 		KASSERT(cdevsw == cdevsw0);
 		newcdevsw = kmem_zalloc(MAXDEVSW * sizeof(newcdevsw[0]),
 		    KM_NOSLEEP);
-                if (newcdevsw == NULL)
-                        return ENOMEM;
+		if (newcdevsw == NULL)
+			return ENOMEM;
 		memcpy(newcdevsw, cdevsw, max_cdevsws * sizeof(cdevsw[0]));
 		atomic_store_release(&cdevsw, newcdevsw);
 		atomic_store_release(&max_cdevsws, MAXDEVSW);