Re: [Dri-devel][PATCH] sysfs simple class support for DRI char device

[Greg KH <greg@kroah.com>]

On Thu, Mar 11, 2004 at 10:52:21AM -0800, Greg KH wrote:
> >  	DRM_DEBUG("\n");
> > -	if (register_chrdev(DRM_MAJOR, "drm", &DRM(stub_fops)))
> > +	ret1 = register_chrdev(DRM_MAJOR, "drm", &DRM(stub_fops));
> > +	if (!ret1) {
> > +		drm_class = class_simple_create(THIS_MODULE, "drm");
> > +		if (IS_ERR(drm_class)) {
> > +			printk (KERN_ERR "Error creating drm class.\n");
> > +			unregister_chrdev(DRM_MAJOR, "drm");
> > +			return PTR_ERR(drm_class);
> > +		}
> > +	}
> > +	else if (ret1 == -EBUSY)
> >  		i = (struct drm_stub_info *)inter_module_get("drm");
> > +	else
> > +		return -1;
> 
> If ret1 == -EBUSY then we never create the "drm" class_simple structure,
> right?  That's not good.
> 
> Care to fix this up and send a new patch?

In talking about this on irc, I agree I was wrong.  I'll go apply this
patch now.

thanks,

greg k-h