BUG: missing get_mtd_device when running cat /dev/mtdblock*

[Josh Boyer]

On 7/31/06, Jörn Engel <joern at wohnheim.fh-wedel.de> wrote:
> While debugging on a 2.6.5 kernel (with fairly recent mtd) I noticed
> that mtdblock appears to be bypassing get_mtd_device().

Yes, it bypasses calling that.  But...

> Can anyone verify this on current mtd by adding a simple printk() to
> get_mtd_device() and running cat /dev/mtdblock0 > /dev/null or so?
>
> I am assuming this is not desired behaviour and should get fixed.

It seems mtd_blkdevs.c handles the reference counting itself.  See
blktrans_open.  Most certainly this could be changed to call
get_mtd_device instead, but I believe all the locking is correct as it
stands.

Might want to double check though.

josh