tests: do not leak open file

2018-01-15 15:57:30 +01:00 · 2018-01-15 15:57:30 +01:00 · 241f1d1d3b
commit 241f1d1d3b
parent f1a5ca64fd
1 changed files with 2 additions and 1 deletions
--- a/qubes/ext/pci.py
+++ b/qubes/ext/pci.py
@ -71,7 +71,8 @@ def pcidev_class(dev_xmldesc):
    sysfs_path = dev_xmldesc.findtext('path')
    assert sysfs_path
    try:
-        class_id = open(sysfs_path + '/class').read().strip()
+        with open(sysfs_path + '/class') as f_class:
+            class_id = f_class.read().strip()
    except OSError:
        return "Unknown"