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From: Rick Macklem <rmacklem@FreeBSD.org>
Date: Mon, 18 Apr 2011 01:02:43 +0000 (UTC)
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Subject: svn commit: r220764 - head/sys/fs/nfsclient
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Author: rmacklem
Date: Mon Apr 18 01:02:43 2011
New Revision: 220764
URL: http://svn.freebsd.org/changeset/base/220764

Log:
  Add a vput() to nfs_lookitup() in the experimental NFS client
  for a case that will probably never happen. It can only
  happen if a server were to successfully lookup a file, but not
  return attributes for that file. Although technically allowed
  by the NFSv3 RFC, I doubt any server would ever do this.
  However, if it did, the client would have not vput()'d the
  new vnode when it needed to do so.
  
  MFC after:	2 weeks

Modified:
  head/sys/fs/nfsclient/nfs_clvnops.c

Modified: head/sys/fs/nfsclient/nfs_clvnops.c
==============================================================================
--- head/sys/fs/nfsclient/nfs_clvnops.c	Mon Apr 18 00:41:23 2011	(r220763)
+++ head/sys/fs/nfsclient/nfs_clvnops.c	Mon Apr 18 01:02:43 2011	(r220764)
@@ -2433,7 +2433,10 @@ printf("replace=%s\n",nnn);
 		    newvp = NFSTOV(np);
 		}
 		if (!attrflag && *npp == NULL) {
-			vrele(newvp);
+			if (newvp == dvp)
+				vrele(newvp);
+			else
+				vput(newvp);
 			return (ENOENT);
 		}
 		if (attrflag)