10133 smatch fixes for usr/src/cmd/fs.d

*** 22,31 ****
--- 22,35 ----
   * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  /*
+  * Copyright (c) 2018, Joyent, Inc.
+  */
+ 
+ /*
   * smbfs umount
   */
  
  #include <stdio.h>
  #include <stdlib.h>
*** 177,184 ****
                                  fsfreemnttab(res);
                          res = fsdupmnttab(&mnt);
                  }
          }
  
!         fclose(fp);
          return (res);
  }
--- 181,188 ----
                                  fsfreemnttab(res);
                          res = fsdupmnttab(&mnt);
                  }
          }
  
!         (void) fclose(fp);
          return (res);
  }