10135 picl plugins need smatch fixes

*** 22,31 ****
--- 22,35 ----
   * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  /*
+  * Copyright (c) 2018, Joyent, Inc.
+  */
+ 
+ /*
   * PICL plug-in that creates device tree nodes for all platforms
   */
  
  #include <stdio.h>
  #include <string.h>
*** 1768,1778 ****
   */
  static int
  is_snapshot_stale(di_node_t root)
  {
          snapshot_stale = 0;
!         di_walk_node(root, DI_WALK_CLDFIRST, NULL, check_stale_node);
          return (snapshot_stale);
  }
  
  /*
   * This function processes the data from libdevinfo and creates nodes
--- 1772,1782 ----
   */
  static int
  is_snapshot_stale(di_node_t root)
  {
          snapshot_stale = 0;
!         (void) di_walk_node(root, DI_WALK_CLDFIRST, NULL, check_stale_node);
          return (snapshot_stale);
  }
  
  /*
   * This function processes the data from libdevinfo and creates nodes
*** 2544,2555 ****
                  free(opp);
                  (void) close(d);
                  return (0);
          }
          (void) memcpy(*exportlist, opp->oprom_array, opp->oprom_size);
-         free(opp);
          *exportlistlen = opp->oprom_size;
          (void) close(d);
          return (1);
  }
  
  /*
--- 2548,2559 ----
                  free(opp);
                  (void) close(d);
                  return (0);
          }
          (void) memcpy(*exportlist, opp->oprom_array, opp->oprom_size);
          *exportlistlen = opp->oprom_size;
+         free(opp);
          (void) close(d);
          return (1);
  }
  
  /*