git: 272e4f538467 - main - cam: Fix wiring fence post error

The branch main has been updated by imp:

URL: https://cgit.FreeBSD.org/src/commit/?id=272e4f538467f41eebf611cf7ce92c5c80afcbff

commit 272e4f538467f41eebf611cf7ce92c5c80afcbff
Author:     Warner Losh <imp@FreeBSD.org>
AuthorDate: 2022-01-13 22:22:13 +0000
Commit:     Warner Losh <imp@FreeBSD.org>
CommitDate: 2022-01-13 22:22:56 +0000

    cam: Fix wiring fence post error
    
    If the last matching device entry partially matched in camperiphunit,
    but then hit a continue case, we'd mistakenly think we had a match on
    that entry. This lead to a number of problems downstream (usually a
    belief that we had a duplicate wiring hint because unit = 0 is the
    default). Fix this by using a for loop that does the assignment before
    the loop termination test.
    
    Sponsored by:           Netflix
    Reviewed by:            jhb
    Differential Revision:  https://reviews.freebsd.org/D33873
---
 sys/cam/cam_periph.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sys/cam/cam_periph.c b/sys/cam/cam_periph.c
index 1203ac2d9b21..869691f59a72 100644
--- a/sys/cam/cam_periph.c
+++ b/sys/cam/cam_periph.c
@@ -611,8 +611,9 @@ camperiphunit(struct periph_driver *p_drv, path_id_t pathid,
 	unit = 0;
 	i = 0;
 	dname = periph_name;
-	while (resource_find_dev(&i, dname, &dunit, NULL, NULL) == 0) {
-		wired = false;
+
+	for (wired = false; resource_find_dev(&i, dname, &dunit, NULL, NULL) == 0;
+	     wired = false) {
 		if (resource_string_value(dname, dunit, "at", &strval) == 0) {
 			if (strcmp(strval, pathbuf) != 0)
 				continue;