Bug#259031: #259031 ioctl FBIOGET_CON2FBMAP: Invalid argument on CONFIG_FRAMEBUFFER_CONSOLE=m kernel

[Christoph Hellwig <hch@lst.de>]

On Fri, Aug 27, 2004 at 12:33:41PM -0400, Joey Hess wrote:
> Christoph Hellwig wrote:
> > The FBIOGET_CON2FBMAP is only implemented for builtin framebuffer
> > console and isn't easily implementable for modular framebuffer console.
> > 
> > If nessecary and there's enough space left on the bootdisks we could
> > ship a builin framebuffer console.  Please start a discussion on
> > debian-kernel on that ASAP as all architecture maintainers need to be
> > involved.
> 
> As far as I know, this bug only affected the 2.6.6 kernel, and is ok in
> 2.6.7. Been a while since I tried a 2.6.7 japanese install though.

I've looked at 2.6.8 and the code looks like this:

#ifdef CONFIG_FRAMEBUFFER_CONSOLE
        case FBIOGET_CON2FBMAP:
		if (copy_from_user(&con2fb, argp, sizeof(con2fb)))
			return -EFAULT;

	...
#endif  /* CONFIG_FRAMEBUFFER_CONSOLE */