Hi,

i detected an issue in follwing code (starting from line 61):

	*buf = 0;
	for (; i < elem->num_args; ++i)
		len = sprintf(buf, "%sName:        %s\n%s%s%sDescription: %s\n"
			"\n", buf,
			  elem->args[i].name,
			  elem->args[i].def ? "Default:     " : "",
			  elem->args[i].def ? elem->args[i].def : "",
			  elem->args[i].def ? "\n" : "",
			  elem->args[i].desc);

The memory of variable buf overlapps, using the sprintf statement;

This issue was detected with cppcheck (a static code analysis tool).
It created the follwing message:
[linux-2.6.29/drivers/isdn/mISDN/dsp_pipeline.c:64]: (error) Overlapping data buffer buf

Best regards

Ettl Martin