Merged revisions 195021 via svnmerge from

https://origsvn.digium.com/svn/asterisk/trunk

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  r195021 | russell | 2009-05-18 07:59:11 -0500 (Mon, 18 May 2009) | 12 lines
  
  Recorded merge of revisions 195020 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.4
  
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    r195020 | russell | 2009-05-18 07:57:46 -0500 (Mon, 18 May 2009) | 5 lines
    
    Don't try to unlock a bogus channel.
    
    (closes issue #15144)
    Reported by: cristiandimache
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.1@195023 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/manager.c

@@ -1845,6 +1845,7 @@ static int action_getvar(struct mansession *s, const struct message *m)
 			if (c) {
 				ast_func_read(c, (char *) varname, workspace, sizeof(workspace));
 				ast_channel_free(c);
+				c = NULL;
 			} else
 				ast_log(LOG_ERROR, "Unable to allocate bogus channel for variable substitution.  Function results may be blank.\n");
 		} else