Remove foo != NULL outside of xfa/

core/src/fxcodec/codec/fx_codec_bmp.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "core/include/fxcodec/fx_codec.h"
 #include "core/include/fxge/fx_dib.h"
 #include "core/src/fxcodec/codec/codec_int.h"
 #include "core/src/fxcodec/lbmp/fx_bmp.h"
 struct FXBMP_Context {
   bmp_decompress_struct_p bmp_ptr;
   void* parent_ptr;
   void* child_ptr;
 
   void* (*m_AllocFunc)(unsigned int);
   void (*m_FreeFunc)(void*);
 };
 extern "C" {
 static void* _bmp_alloc_func(unsigned int size) {
   return FX_Alloc(char, size);
 }
 static void _bmp_free_func(void* p) {
-  if (p != NULL) {
-    FX_Free(p);
-  }
+  FX_Free(p);
 }
 };
 static void _bmp_error_data(bmp_decompress_struct_p bmp_ptr,
                             const FX_CHAR* err_msg) {
   FXSYS_strncpy((char*)bmp_ptr->err_ptr, err_msg, BMP_MAX_ERROR_SIZE - 1);
   longjmp(bmp_ptr->jmpbuf, 1);
 }
 static void _bmp_read_scanline(bmp_decompress_struct_p bmp_ptr,
                                int32_t row_num,
                                uint8_t* row_buf) {
@@ skipping 28 matching lines @@
   }
   p->bmp_ptr->context_ptr = (void*)p;
   p->bmp_ptr->err_ptr = m_szLastError;
   p->bmp_ptr->_bmp_error_fn = _bmp_error_data;
   p->bmp_ptr->_bmp_get_row_fn = _bmp_read_scanline;
   p->bmp_ptr->_bmp_get_data_position_fn = _bmp_get_data_position;
   return p;
 }
 void CCodec_BmpModule::Finish(void* pContext) {
   FXBMP_Context* p = (FXBMP_Context*)pContext;
-  if (p != NULL) {
+  if (p) {
     _bmp_destroy_decompress(&p->bmp_ptr);
     p->m_FreeFunc(p);
   }
 }
 int32_t CCodec_BmpModule::ReadHeader(void* pContext,
                                      int32_t* width,
                                      int32_t* height,
                                      FX_BOOL* tb_flag,
                                      int32_t* components,
                                      int32_t* pal_num,
@@ skipping 32 matching lines @@
                                          uint8_t** avial_buf_ptr) {
   FXBMP_Context* p = (FXBMP_Context*)pContext;
   return _bmp_get_avail_input(p->bmp_ptr, avial_buf_ptr);
 }
 void CCodec_BmpModule::Input(void* pContext,
                              const uint8_t* src_buf,
                              FX_DWORD src_size) {
   FXBMP_Context* p = (FXBMP_Context*)pContext;
   _bmp_input_buffer(p->bmp_ptr, (uint8_t*)src_buf, src_size);
 }