ensure lock removal is notified in case of error

Author: sanderegg

packages/service-library/src/servicelib/redis/_project_lock.py

@@ -63,13 +63,14 @@ async def _exclusive_func(*args, **kwargs) -> R:
                 return await func(*args, **kwargs)
 
             try:
-                result = await _exclusive_func(*args, **kwargs)
+                return await _exclusive_func(*args, **kwargs)
+
+            except CouldNotAcquireLockError as e:
+                raise ProjectLockError from e
+            finally:
                 # we are now unlocked
                 if notification_cb is not None:
                     await notification_cb()
-                return result
-            except CouldNotAcquireLockError as e:
-                raise ProjectLockError from e
 
         return _wrapper