From: Michael Tremer <michael.tremer@ipfire.org>
Date: Sun, 12 Dec 2010 20:16:49 +0000 (+0100)
Subject: Fix error if no USB subsystem is available.
X-Git-Tag: v0.11~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=94700953460510d2ee7afe9ae59623dc2c750243;p=oddments%2Ffireinfo.git

Fix error if no USB subsystem is available.
---

diff --git a/fireinfo/system.py b/fireinfo/system.py
index 01c1990..ce0efc7 100644
--- a/fireinfo/system.py
+++ b/fireinfo/system.py
@@ -303,6 +303,9 @@ class System(object):
 		toscan = (("/sys/bus/pci/devices", device.PCIDevice),
 		("/sys/bus/usb/devices", device.USBDevice))
 		for path, cls in toscan:
+			if not os.path.exists(path):
+				continue
+
 			dirlist = os.listdir(path)
 			for dir in dirlist:
 				self.devices.append(cls(os.path.join(path, dir)))