5111 smb_common_rename uses uninitialized variable
Reviewed by: Gordon Ross <gwr@nexenta.com>

*** 345,360 ****
                          return (rc);
          }
  
          src_fnode = src_fqi->fq_fnode;
          src_dnode = src_fqi->fq_dnode;
  
          /* Find destination dnode and last_comp */
          if (dst_fqi->fq_dnode) {
                  smb_node_ref(dst_fqi->fq_dnode);
          } else {
-                 tnode = sr->tid_tree->t_snode;
                  rc = smb_pathname_reduce(sr, sr->user_cr, path, tnode, tnode,
                      &dst_fqi->fq_dnode, dst_fqi->fq_last_comp);
                  if (rc != 0) {
                          smb_rename_release_src(sr);
                          return (rc);
--- 345,360 ----
                          return (rc);
          }
  
          src_fnode = src_fqi->fq_fnode;
          src_dnode = src_fqi->fq_dnode;
+         tnode = sr->tid_tree->t_snode;
  
          /* Find destination dnode and last_comp */
          if (dst_fqi->fq_dnode) {
                  smb_node_ref(dst_fqi->fq_dnode);
          } else {
                  rc = smb_pathname_reduce(sr, sr->user_cr, path, tnode, tnode,
                      &dst_fqi->fq_dnode, dst_fqi->fq_last_comp);
                  if (rc != 0) {
                          smb_rename_release_src(sr);
                          return (rc);