From 42fef565731411a784101de614a54bff79d1858e Mon Sep 17 00:00:00 2001
From: Lyonel Vincent <lyonel@ezix.org>
Date: Wed, 31 Aug 2022 11:14:23 +0200
Subject: [PATCH 1/3] PA-RISC: handle pushd failure

from https://github.com/lyonel/lshw/pull/89

When /sys/devices/parisc does not exist, any directory with a name consisting of only numbers in current working directory was being interpreted as a device, for example:

krzys_h@krzysh-laptop:/mnt/ramdisk $ ls /sys/devices/parisc
ls: cannot access '/sys/devices/parisc': No such file or directory
krzys_h@krzysh-laptop:/mnt/ramdisk $ mkdir 13374242
krzys_h@krzysh-laptop:/mnt/ramdisk $ sudo lshw | grep 13374242 -B3 -A3
             width: 64 bits
             clock: 1600MHz (0.6ns)
     *-generic UNCLAIMED
          physical id: 13374242
          bus info: parisc@13374242
     *-pci
          description: Host bridge
          product: Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller

This commit fixes that by properly checking the return value from pushd.
---
 src/core/parisc.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core/parisc.cc b/src/core/parisc.cc
index 1e531e3..8a8c4d8 100644
--- a/src/core/parisc.cc
+++ b/src/core/parisc.cc
@@ -593,7 +593,9 @@ bool scan_parisc(hwNode & node)
 
   if(core->getDescription()=="")
     core->setDescription("Motherboard");
-  pushd(DEVICESPARISC);
+
+  if(!pushd(DEVICESPARISC))
+    return false;
   scan_device(*core);
   popd();
 
-- 
2.33.1