[gdal-dev] HFA RRD bug

[Martin Chapman]

In the file c:\software\gdal\gcore\gdaldefaultoverviews.cpp in the function
GDALDefaultBuildOverviews::BuildOverviews() on line 517 when I try to build
overviews for an erdas imagine file .img and using USE_RRD=YES config option
the 

 

poOverDS = poBand->GetDataset(); 

 

call always returns NULL and then there is no check for NULL after that on
line 519 which causes the application to seg fault.  

 

poOverDS->oOvManager.poBaseDS = poDS; // KABOOM!!! because poOverDS is NULL.

 

Is this a bug?  Where should the dataset of the band be assigned during the
overview creation process?

 

Best regards,

 

Martin Chapman

 

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