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-rw-r--r--share/man/man9/bus_dma.94
1 files changed, 3 insertions, 1 deletions
diff --git a/share/man/man9/bus_dma.9 b/share/man/man9/bus_dma.9
index c0520f31678..f54e4e68511 100644
--- a/share/man/man9/bus_dma.9
+++ b/share/man/man9/bus_dma.9
@@ -1,4 +1,4 @@
-.\" $OpenBSD: bus_dma.9,v 1.21 2005/11/28 20:16:00 krw Exp $
+.\" $OpenBSD: bus_dma.9,v 1.22 2006/03/26 14:47:26 marco Exp $
.\" $NetBSD: bus_dma.9,v 1.14 2000/06/14 06:49:19 cgd Exp $
.\"
.\" Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
@@ -409,6 +409,8 @@ The
.Fn bus_dmamap_unload
function deletes the mappings for a given DMA handle.
This function always succeeds if given valid arguments.
+Attempting to unload a map that is already unloaded is
+not valid.
.Pp
The
.Fn bus_dmamap_unload