PVS-StudioWarnings

PVS-Studio warning V522 for OpenJPEG

Nov 24th, 2014
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C++ 0.83 KB | None | 0 0
  1. bool j2k_write_rgn(....)
  2. {
  3.   OPJ_BYTE * l_current_data = 00;
  4.   OPJ_UINT32 l_nb_comp;
  5.   OPJ_UINT32 l_rgn_size;
  6.   opj_image_t *l_image = 00;
  7.   opj_cp_t *l_cp = 00;
  8.   opj_tcp_t *l_tcp = 00;
  9.   opj_tccp_t *l_tccp = 00;
  10.   OPJ_UINT32 l_comp_room;
  11.  
  12.   // preconditions
  13.   assert(p_j2k != 00);
  14.   assert(p_manager != 00);
  15.   assert(p_stream != 00);
  16.  
  17.   l_cp = &(p_j2k->m_cp);
  18.   l_tcp = &l_cp->tcps[p_tile_no];
  19.   l_tccp = &l_tcp->tccps[p_comp_no];
  20.  
  21.   l_nb_comp = l_image->numcomps;
  22.   ....
  23. }
  24.  
  25. This suspicious code was found in OpenJPEG project by PVS-Studio static code analyzer.
  26. Warning message is:
  27. V522 Dereferencing of the null pointer 'l_image' might take place. j2k.c 5205
  28.  
  29. PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/
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