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From: Ngie Cooper <ngie@FreeBSD.org>
Date: Sun, 12 Mar 2017 05:07:34 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r315132 - head/lib/libcam
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Author: ngie
Date: Sun Mar 12 05:07:33 2017
New Revision: 315132
URL: https://svnweb.freebsd.org/changeset/base/315132

Log:
  Use .Dv when referencing NULL
  
  This is the correct markup macro, as opposed to .Va (variable names)
  
  While here, annotate several bare references to `NULL` with .Dv.
  
  MFC after:	1 week
  Sponsored by:	Dell EMC Isilon

Modified:
  head/lib/libcam/cam.3

Modified: head/lib/libcam/cam.3
==============================================================================
--- head/lib/libcam/cam.3	Sun Mar 12 05:00:04 2017	(r315131)
+++ head/lib/libcam/cam.3	Sun Mar 12 05:07:33 2017	(r315132)
@@ -27,7 +27,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd October 10, 1998
+.Dd March 11, 2017
 .Dt CAM 3
 .Os
 .Sh NAME
@@ -208,7 +208,7 @@ structure.
 If the
 .Ar device
 argument is
-.Va NULL ,
+.Dv NULL ,
 .Fn cam_open_spec_device
 will allocate space for the
 .Va cam_device
@@ -258,7 +258,9 @@ argument, as with
 .Fn cam_open_spec_device
 and
 .Fn cam_open_btl ,
-should be NULL if the user wants the CAM library to allocate space for the
+should be
+.Dv NULL
+if the user wants the CAM library to allocate space for the
 .Va cam_device
 structure.
 .Fn cam_close_device
@@ -365,11 +367,14 @@ and
 .Fn cam_open_pass
 return a pointer to a
 .Va cam_device
-structure, or NULL if there was an error.
+structure, or
+.Dv NULL
+if there was an error.
 .Pp
 .Fn cam_getccb
-returns an allocated and partially initialized CCB, or NULL if allocation
-of the CCB failed.
+returns an allocated and partially initialized CCB, or
+.Dv NULL
+if allocation of the CCB failed.
 .Pp
 .Fn cam_send_ccb
 returns a value of -1 if an error occurred, and
@@ -386,7 +391,9 @@ that is passed into
 .Fn cam_device_dup
 returns a copy of the
 .Va device
-passed in, or NULL if an error occurred.
+passed in, or
+.Dv NULL
+if an error occurred.
 .Pp
 .Fn cam_get_device
 returns 0 for success, and -1 to indicate failure.