From ee2ca2b0f6d4b5adac716a73c60193e0a500694a Mon Sep 17 00:00:00 2001
From: Bakul Shah <bakul@bitblocks.com>
Date: Sun, 4 Aug 2024 11:19:52 -0700
Subject: [PATCH] p9fs: Properly handle paths containing "."

Fixes:	56e4622588ed ("p9fs: fix lookup of "." for lib9p-based 9P servers")
Pull Request:	https://github.com/freebsd/freebsd-src/pull/1361
---
 sys/fs/p9fs/p9fs_vnops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/fs/p9fs/p9fs_vnops.c b/sys/fs/p9fs/p9fs_vnops.c
index 6ac0a7c008c..14951e96b59 100644
--- a/sys/fs/p9fs/p9fs_vnops.c
+++ b/sys/fs/p9fs/p9fs_vnops.c
@@ -238,7 +238,7 @@ p9fs_lookup(struct vop_lookup_args *ap)
 	if (dnp == NULL)
 		return (ENOENT);
 
-	if (cnp->cn_nameptr[0] == '.' && strlen(cnp->cn_nameptr) == 1) {
+	if (cnp->cn_nameptr[0] == '.' && cnp->cn_namelen == 1) {
 		vref(dvp);
 		*vpp = dvp;
 		return (0);