Fix file descriptor leak for the top-level Kconfig file

Needs to be close()d. The other Kconfig files are close()d in
_leave_file().

Could drop the reference somehow too, but an explicit close() is best
for PyPy, which doesn't do reference counting.

1 files changed, 3 insertions, 0 deletions

diff --git a/kconfiglib.py b/kconfiglib.py
index 76853ea..3b4e8d7 100644
--- a/kconfiglib.py
+++ b/kconfiglib.py
@@ -782,6 +782,9 @@ class Kconfig(object):
         except UnicodeDecodeError as e:
             _decoding_error(e, self._filename)
 
+        # Close the top-level Kconfig file
+        self._file.close()
+
         self.top_node.list = self.top_node.next
         self.top_node.next = None