libcamera: bound_method: Fix memory leak with direct connections

When BoundMethodBase::activatePack() is called with the connection type
set to ConnectionTypeDirect, the method isn't deleted even if
deleteMethod is true, as is the case when called from
Object::invokeMethod(). This causes a memory leak. Fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>

src/libcamera/bound_method.cpp

@@ -62,6 +62,8 @@ void BoundMethodBase::activatePack(void *pack, bool deleteMethod)
 	case ConnectionTypeDirect:
 	default:
 		invokePack(pack);
+		if (deleteMethod)
+			delete this;
 		break;
 
 	case ConnectionTypeQueued: {