Do not check pointers before deleting them.

xfa/fxbarcode/BC_TwoDimWriter.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 <algorithm>
 
 #include "third_party/base/numerics/safe_math.h"
 #include "xfa/fxbarcode/BC_TwoDimWriter.h"
@@ skipping 35 matching lines @@
       rect.AppendRect((FX_FLOAT)leftPos + x, (FX_FLOAT)topPos + y,
                       (FX_FLOAT)(leftPos + x + 1), (FX_FLOAT)(topPos + y + 1));
       CFX_GraphStateData stateData;
       if (m_output->Get(x, y)) {
         device->DrawPath(&rect, &matri, &stateData, m_barColor, 0,
                          FXFILL_WINDING);
       }
     }
   }
 }
+
 void CBC_TwoDimWriter::RenderBitmapResult(CFX_DIBitmap*& pOutBitmap,
                                           int32_t& e) {
   if (m_bFixedSize) {
     pOutBitmap = CreateDIBitmap(m_Width, m_Height);
   } else {
     pOutBitmap = CreateDIBitmap(m_output->GetWidth(), m_output->GetHeight());
   }
   if (!pOutBitmap) {
     e = BCExceptionFailToCreateBitmap;
     return;
   }
   pOutBitmap->Clear(m_backgroundColor);
   int32_t leftPos = 0;
   int32_t topPos = 0;
   if (m_bFixedSize) {
     leftPos = (m_Width - m_output->GetWidth()) / 2;
     topPos = (m_Height - m_output->GetHeight()) / 2;
   }
   for (int32_t x = 0; x < m_output->GetWidth(); x++) {
     for (int32_t y = 0; y < m_output->GetHeight(); y++) {
       if (m_output->Get(x, y)) {
         pOutBitmap->SetPixel(leftPos + x, topPos + y, m_barColor);
       }
     }
   }
   if (!m_bFixedSize) {
     CFX_DIBitmap* pStretchBitmap = pOutBitmap->StretchTo(m_Width, m_Height);
-    if (pOutBitmap) {
-      delete pOutBitmap;
-    }
+    delete pOutBitmap;
     pOutBitmap = pStretchBitmap;
   }
 }
+
 void CBC_TwoDimWriter::RenderResult(uint8_t* code,
                                     int32_t codeWidth,
                                     int32_t codeHeight,
                                     int32_t& e) {
   int32_t inputWidth = codeWidth;
   int32_t inputHeight = codeHeight;
   int32_t tempWidth = inputWidth + 2;
   int32_t tempHeight = inputHeight + 2;
   FX_FLOAT moduleHSize = std::min(m_ModuleWidth, m_ModuleHeight);
   moduleHSize = std::min(moduleHSize, 8.0f);
@@ skipping 40 matching lines @@
     for (int32_t inputX = 0, outputX = leftPadding;
          (inputX < inputWidth) && (outputX < outputWidth - multiX);
          inputX++, outputX += multiX) {
       if (code[inputX + inputY * inputWidth] == 1) {
         m_output->SetRegion(outputX, outputY, multiX, multiY, e);
         BC_EXCEPTION_CHECK_ReturnVoid(e);
       }
     }
   }
 }