corrupted stack - c++

Question

This is my function and it says
stack around variable cinfo was corrupted.
and it says that problem is in line 551 which is last line in this posted code.
struct jpeg_compress_struct cinfo;
struct jpeg_error_mgr jerr;
FILE* pOutFile; //Target file
int nSampsPerRow; //Physical row width in image buffer
JSAMPARRAY jsmpArray; //Pixel RGB buffer for JPEG file
cinfo.err = jpeg_std_error(&jerr); //Use default error handling (ugly!)
jpeg_create_compress(&cinfo);
if ((pOutFile = fopen(csJpeg, "wb")) == NULL)
{
*pcsMsg = "Cannot open ";
*pcsMsg += csJpeg;
jpeg_destroy_compress(&cinfo);
return FALSE;
}
jpeg_stdio_dest(&cinfo, pOutFile);
LPBITMAPINFOHEADER lpbi = (LPBITMAPINFOHEADER)hDib;
cinfo.image_width = lpbi->biWidth; //Image width and height, in pixels
cinfo.image_height = lpbi->biHeight;
cinfo.input_components = 3; //Color components per pixel
//(RGB_PIXELSIZE - see jmorecfg.h)
cinfo.in_color_space = JCS_RGB; //Colorspace of input image
jpeg_set_defaults(&cinfo);
jpeg_set_quality(&cinfo,
nQuality, //Quality: 0-100 scale
TRUE); //Limit to baseline-JPEG values
jpeg_start_compress(&cinfo, TRUE);
//JSAMPLEs per row in output buffer
nSampsPerRow = cinfo.image_width * cinfo.input_components;
//Allocate array of pixel RGB values
jsmpArray = (*cinfo.mem->alloc_sarray)
((j_common_ptr) &cinfo,
JPOOL_IMAGE,
nSampsPerRow,
cinfo.image_height);
if (DibToSamps(hDib,
nSampsPerRow,
cinfo,
jsmpArray,
pcsMsg))
{
//Write the array of scan lines to the JPEG file
(void)jpeg_write_scanlines(&cinfo,
jsmpArray,
cinfo.image_height);
}
jpeg_finish_compress(&cinfo); //Always finish
fclose(pOutFile);
jpeg_destroy_compress(&cinfo); //Free resources
if (*pcsMsg != "")
return FALSE;
else
return TRUE;
}
stack trace:> WindowBitmap.exe!CBitmapFile::JpegFromDib(void * hDib, int nQuality, ATL::CStringT > > csJpeg, ATL::CStringT > > * pcsMsg) Line 551 + 0x28 bytes C++
error message: Run-Time Check Failure #2 - Stack around the variable 'cinfo' was corrupted.
pcsMsg definition:
CString* pcsMsg

Answer 1

jpeg_destroy_compress(&cinfo);
frees the memory of an automatic variable, which is freed a second time when cinfo goes out of scope.
The function jpeg_destroy_compress() shall deallocate and release all memory associated with the compression object.