DMA-API: fix confusing sentence in Documentation/DMA-API.txt

Change the phrase "handed off to the driver" to "handed off to the
device" as in the paragraph below.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index 1e98a7e..45ef3f2 100644
--- a/Documentation/DMA-API.txt
+++ b/Documentation/DMA-API.txt
@@ -236,7 +236,7 @@
 
 DMA_TO_DEVICE synchronisation must be done after the last modification
 of the memory region by the software and before it is handed off to
-the driver.  Once this primitive is used, memory covered by this
+the device.  Once this primitive is used, memory covered by this
 primitive should be treated as read-only by the device.  If the device
 may write to it at any point, it should be DMA_BIDIRECTIONAL (see
 below).