[PATCH 1/2] mtd: use refcount to prevent corruption

[Usyskin, Alexander]

> > With this patch applied, when I load up the module, I get the same 3
> > devices:
> > /dev/mtd0
> > /dev/mtd0ro
> > /dev/mtdblock0
> >
> > Upon removal, the below 2 devices still hang around:
> > /dev/mtd0
> > /dev/mtd0ro
> 
Our use-case do not produce mtdblock, maybe there are some imbalances of get/put?
I have somewhere version with pr_debug after every kref_get/put. That may help to catch where
it missed, I hope.

--
Alexander (Sasha) Usyskin

CSE FW Dev - Host SW
Intel Israel (74) Limited