avoid dangling reference for cdir when doing rename

SCCS-vsn: sys/nfs/nfs_serv.c 7.5

diff --git a/usr/src/sys/nfs/nfs_serv.c b/usr/src/sys/nfs/nfs_serv.c
index 461585a..b7e327a 100644 (file)
--- a/usr/src/sys/nfs/nfs_serv.c
+++ b/usr/src/sys/nfs/nfs_serv.c
@@ -17,7 +17,7 @@
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *

- *     @(#)nfs_serv.c  7.4 (Berkeley) %G%
+ *     @(#)nfs_serv.c  7.5 (Berkeley) %G%

  */
 
 /*
  */
 
 /*


@@ -738,10 +738,12 @@ out:
                VOP_ABORTOP(&tond);
                VOP_ABORTOP(ndp);
        } else {
                VOP_ABORTOP(&tond);
                VOP_ABORTOP(ndp);
        } else {

+               VREF(tond.ni_cdir);

                error = VOP_RENAME(ndp, &tond);
                error = VOP_RENAME(ndp, &tond);

+               vrele(tond.ni_cdir);

        }
 out1:
        }
 out1:

-       ndrele(&tond);
+       ndrele(ndp);

        nfsm_reply(0);
        return (error);
 nfsmout:
        nfsm_reply(0);
        return (error);
 nfsmout: