this stuff looks el-crappo in an 80-col display.

Cleaning up....

This guy can have static scope.

It's a bit awkward having a fixed size.  I think lib/idr.c would suit for
this.

Also, we do set_bit() and clear_bit() on this, which are needlessly atomic. 
If we hold a suitable lock then we can use __set_bit() and __clear_bit().

And we do need a suitable lock.

Fixing... Never knew about idr. Hum nice :-) I will have a new patch your 
way. I just need to do some teste first.

Why all the ifdeffery?  I think plain old


static void __exit display_class_exit(void)
{
	class_destroy(display_class);
}
module_exit(display_class_exit);
module_init(display_class_init);

That is from the hunting of the bug with the broken symlinks in /sys. Will 
go back to sanity.

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