diff --git a/drivers/uwb/umc-bus.c b/drivers/uwb/umc-bus.c
index 82a84d53120f27f2a1734fcef5ab5774d5fbc0a3..5c5b3fc9088a30d25fd526fca9427006e9f9d23e 100644
--- a/drivers/uwb/umc-bus.c
+++ b/drivers/uwb/umc-bus.c
@@ -63,7 +63,7 @@ int umc_controller_reset(struct umc_dev *umc)
 	struct device *parent = umc->dev.parent;
 	int ret = 0;
 
-	if (device_trylock(parent))
+	if (!device_trylock(parent))
 		return -EAGAIN;
 	ret = device_for_each_child(parent, parent, umc_bus_pre_reset_helper);
 	if (ret >= 0)