close sysfs file

2025-07-09 03:04:10 -04:00 · 2021-12-16 13:15:21 +08:00 · 2021-12-16 13:15:21 +08:00 · b37a4b1f7a
commit b37a4b1f7a
parent c3925db827
1 changed files with 2 additions and 1 deletions
--- a/src/calibre/devices/usbms/device.py
+++ b/src/calibre/devices/usbms/device.py
@ -530,7 +530,8 @@ class Device(DeviceConfig, DevicePlugin):
            if not os.access(sz, os.R_OK):
                continue
            try:
-                sz = int(open(sz, 'rb').read().decode('utf-8'))
+                with open(sz, 'rb') as szf:
+                    sz = int(szf.read().decode('utf-8'))
            except:
                continue
            if sz > 0: