libcamera: device_enumerator: Fix memory leak in error path

The DeviceEnumerator::create() function allocates a
DeviceEnumeratorUdev and fails to delete it in the error path, causing a
memory leak. Fix it.

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

src/libcamera/device_enumerator.cpp

@@ -140,6 +140,8 @@ DeviceEnumerator *DeviceEnumerator::create()
 	if (!enumerator->init())
 		return enumerator;
 
+	delete enumerator;
+
 	/*
 	 * Either udev is not available or udev initialization failed. Fall back
 	 * on the sysfs enumerator.