cvWarpPerspective Crashing in Dev C++ runtime

Question

Can someone throw some light on why cvWarpPerspective might be crashing runtime ? I am using opencv2.0 and code is posted below ( taken from learning opencv book ) Any help is greatly appreciated.

int main(int argc, char* argv[])
 {

CvPoint2D32f srcQuad[4], dstQuad[4];
CvMat* warp_matrix = cvCreateMat(3,3,CV_32FC1);
IplImage *src, *dst;

if( argc == 2 && ((src=cvLoadImage(argv[1],1)) != 0 )) 
{
dst = cvCloneImage(src);
dst->origin = src->origin;
cvZero(dst);

srcQuad[0].x = 0; //src Top left
srcQuad[0].y = 0;
srcQuad[1].x = src->width - 1; //src Top right
srcQuad[1].y = 0;
srcQuad[2].x = 0; //src Bottom left
srcQuad[2].y = src->height - 1;
srcQuad[3].x = src->width - 1; //src Bot right
srcQuad[3].y = src->height - 1;
dstQuad[0].x = src->width*0.05; //dst Top left
dstQuad[0].y = src->height*0.33;
dstQuad[1].x = src->width*0.9; //dst Top right
dstQuad[1].y = src->height*0.25;
dstQuad[2].x = src->width*0.2; //dst Bottom left
dstQuad[2].y = src->height*0.7;
dstQuad[3].x = src->width*0.8; //dst Bot right
dstQuad[3].y = src->height*0.9;

cvGetPerspectiveTransform(
srcQuad,
dstQuad,
warp_matrix
);
cvSave("warp_matrix.xml",warp_matrix);

cvWarpPerspective( src, dst, warp_matrix );

cvNamedWindow( "Perspective_Warp", 1 );
cvShowImage( "Perspective_Warp", dst );
cvWaitKey();
}

cvReleaseImage(&dst);
cvReleaseMat(&warp_matrix);
return 0;

}