10144 BZ2_bzDecompressReset() gets NULL check wrong

*** 671,686 ****
  /*
   * added to allow reuse of bz_stream without malloc/free
   */
  int BZ_API(BZ2_bzDecompressReset) ( bz_stream* strm )
  {
!    DState* s = strm->state;
  
     if (!bz_config_ok()) return BZ_CONFIG_ERROR;
  
     if (strm == NULL) return BZ_PARAM_ERROR;
  
     s->strm                  = strm;
  
     s->state                 = BZ_X_MAGIC_1;
     s->bsLive                = 0;
     s->bsBuff                = 0;
--- 671,687 ----
  /*
   * added to allow reuse of bz_stream without malloc/free
   */
  int BZ_API(BZ2_bzDecompressReset) ( bz_stream* strm )
  {
!    DState* s;
  
     if (!bz_config_ok()) return BZ_CONFIG_ERROR;
  
     if (strm == NULL) return BZ_PARAM_ERROR;
  
+    s = strm->state;
     s->strm                  = strm;
  
     s->state                 = BZ_X_MAGIC_1;
     s->bsLive                = 0;
     s->bsBuff                = 0;