diff --git a/Documentation/filesystems/autofs4-mount-control.txt b/Documentation/filesystems/autofs4-mount-control.txt
index aff22113a986..540d9a7e252d 100644
--- a/Documentation/filesystems/autofs4-mount-control.txt
+++ b/Documentation/filesystems/autofs4-mount-control.txt
@@ -323,9 +323,8 @@ mount on the given path dentry.
 
 The call requires an initialized struct autofs_dev_ioctl with the path
 field set to the mount point in question and the size field adjusted
-appropriately as well as the arg1 field set to the device number of the
-containing autofs mount. Upon return the struct field arg1 contains the
-uid and arg2 the gid.
+appropriately. Upon return the struct field arg1 contains the uid and
+arg2 the gid.
 
 When reconstructing an autofs mount tree with active mounts we need to
 re-connect to mounts that may have used the original process uid and