Messages in this thread | | | Date | Sun, 16 Jul 2023 15:39:26 +0200 | From | Miquel Raynal <> | Subject | Re: [PATCH 1/2] mtd: use refcount to prevent corruption |
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Hi Alexander,
alexander.usyskin@intel.com wrote on Sun, 16 Jul 2023 06:29:02 +0000:
> > > 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.
I believe mtdblock is the good citizen here. Just disable CONFIG_MTD_BLOCK from your configuration and you will likely observe the same issue, just a bit narrowed, perhaps. Indeed, if you manage to follow all the get/put calls it can help to find an imbalance.
Thanks, Miquèl
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