From 861063f33eda73455532d71a55987556dc98448e Mon Sep 17 00:00:00 2001
From: =?utf8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Sun, 6 Mar 2022 00:22:54 +0100
Subject: [PATCH] lspci: Fix detection of extended capabilities

Bus may report all-ones when trying to access non-existent extended space.
Same check is also in lib/caps.c extended space parser.
---
 ls-ecaps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ls-ecaps.c b/ls-ecaps.c
index 15c57a8..32a2cbc 100644
--- a/ls-ecaps.c
+++ b/ls-ecaps.c
@@ -1041,7 +1041,7 @@ show_ext_caps(struct device *d, int type)
       if (!config_fetch(d, where, 4))
 	break;
       header = get_conf_long(d, where);
-      if (!header)
+      if (!header || header == 0xffffffff)
 	break;
       id = header & 0xffff;
       version = (header >> 16) & 0xf;
-- 
2.39.2