Update openjpeg

core/src/fxcodec/fx_libopenjpeg/libopenjpeg20/mqc.c

 /*
  * The copyright in this software is being made available under the 2-clauses 
  * BSD License, included below. This software may be subject to other third 
  * party and contributor rights, including patent rights, and no such rights
  * are granted under this license.
  *
  * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
  * Copyright (c) 2002-2014, Professor Benoit Macq
  * Copyright (c) 2001-2003, David Janssens
  * Copyright (c) 2002-2003, Yannick Verschueren
@@ skipping 344 matching lines @@
 
 /* 
 ==========================================================
    MQ-Coder interface
 ==========================================================
 */
 
 opj_mqc_t* opj_mqc_create(void) {
         opj_mqc_t *mqc = (opj_mqc_t*)opj_malloc(sizeof(opj_mqc_t));
 #ifdef MQC_PERF_OPT
-        mqc->buffer = NULL;
+        if (mqc) {
+                mqc->buffer = NULL;
+        }
 #endif
         return mqc;
 }
 
 void opj_mqc_destroy(opj_mqc_t *mqc) {
         if(mqc) {
 #ifdef MQC_PERF_OPT
-                opj_free(mqc->buffer);
+                if (mqc->buffer) {
+                        opj_free(mqc->buffer);
+                }
 #endif
                 opj_free(mqc);
         }
 }
 
 OPJ_UINT32 opj_mqc_numbytes(opj_mqc_t *mqc) {
         const ptrdiff_t diff = mqc->bp - mqc->start;
 #if 0
   assert( diff <= 0xffffffff && diff >= 0 ); /* UINT32_MAX */
 #endif
@@ skipping 217 matching lines @@
         for (i = 0; i < MQC_NUMCTXS; i++) {
                 mqc->ctxs[i] = mqc_states;
         }
 }
 
 void opj_mqc_setstate(opj_mqc_t *mqc, OPJ_UINT32 ctxno, OPJ_UINT32 msb, OPJ_INT32 prob) {
         mqc->ctxs[ctxno] = &mqc_states[msb + (OPJ_UINT32)(prob << 1)];
 }