lda_controller: fix memory leak

2014-11-29 11:19:03 +08:00 · 2014-11-29 11:19:03 +08:00 · 9c41f98d70
commit 9c41f98d70
parent 26180e7905
1 changed files with 7 additions and 6 deletions
--- a/artiq/devices/lda/lda_controller.py
+++ b/artiq/devices/lda/lda_controller.py
@ -138,11 +138,12 @@ class Lda:
    def enumerate(cls, product):
        devs = hidapi.hid_enumerate(cls._vendor_id,
                                    cls._product_ids[product])
+        try:
            dev = devs
            while dev:
                yield dev[0].serial
                dev = dev[0].next
-        yield None
+        finally:
            hidapi.hid_free_enumeration(devs)

    def _check_error(self, ret):