From 9661c6bff31c5a26a7d3d396550a7d4238eb4856 Mon Sep 17 00:00:00 2001
From: Douglas RAILLARD <douglas.raillard@arm.com>
Date: Mon, 20 Jan 2020 17:19:34 +0000
Subject: [PATCH] target: Handle non-existing /sys/devices/system/node

Some systems (ARM 32bits it seems) don't have this file in sysfs. Assume 1 node
in that case.
---
 devlib/target.py | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/devlib/target.py b/devlib/target.py
index 42fac2c..a75b4d0 100644
--- a/devlib/target.py
+++ b/devlib/target.py
@@ -167,14 +167,18 @@ class Target(object):
     @property
     @memoized
     def number_of_nodes(self):
-        num_nodes = 0
-        nodere = re.compile(r'^\./node\d+\s*$')
         cmd = 'cd /sys/devices/system/node && {busybox} find . -maxdepth 1'.format(busybox=quote(self.busybox))
-        output = self.execute(cmd, as_root=self.is_rooted)
-        for entry in output.splitlines():
-            if nodere.match(entry):
-                num_nodes += 1
-        return num_nodes
+        try:
+            output = self.execute(cmd, as_root=self.is_rooted)
+        except TargetStableError:
+            return 1
+        else:
+            nodere = re.compile(r'^\./node\d+\s*$')
+            num_nodes = 0
+            for entry in output.splitlines():
+                if nodere.match(entry):
+                    num_nodes += 1
+            return num_nodes
 
     @property
     @memoized