diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst
index 687adb58048e..99a989ebee87 100644
--- a/Documentation/driver-api/driver-model/devres.rst
+++ b/Documentation/driver-api/driver-model/devres.rst
@@ -437,6 +437,7 @@ SERDEV
 
 SLAVE DMA ENGINE
   devm_acpi_dma_controller_register()
+  devm_acpi_dma_controller_free()
 
 SPI
   devm_spi_alloc_master()