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    SubjectRe: [PATCH 07/14 v3] bq27x00: Cache battery registers
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    > I've added the patch to my bq27x00-for-upstream tree.

    Thanks.

    >>
    >> However there is bigger problem, compiling as module and doing
    >> insmod/rmmod/insmod causes kernel OOPS:
    >>
    >> [  882.575714] BUG: sleeping function called from invalid context at
    >> arch/arm/mm/fault.c:295
    >> [  882.584350] in_atomic(): 0, irqs_disabled(): 128, pid: 1154, name: insmod
    >> ...
    >> [  882.959930] Unable to handle kernel NULL pointer dereference at
    >> virtual address 00000000
    >> [  882.968444] pgd = c14c8000
    >> [  882.977905] Internal error: Oops: 817 [#1]
    >> ...
    >> [  883.304412] [<c007eed8>] (__queue_work+0x140/0x260) from
    >> [<c007f044>] (queue_work_on+0x2c/0x34)
    >> [  883.313568] [<c007f044>] (queue_work_on+0x2c/0x34) from
    >> [<bf008390>] (bq27x00_update+0x1f8/0x220 [bq27x00_battery])
    >> [  883.324584] [<bf008390>] (bq27x00_update+0x1f8/0x220
    >> [bq27x00_battery]) from [<bf0084c8>] (bq27x00_battery_poll+0x14/0x48
    >> [bq27x00_battery])
    >>
    >> full backtrace attached.
    >
    > I can't reproduce that OOPS. And the backtrace looks a bit strange,
    > queue_work_on is not called from bq27x00_update.
    > Can you send me the disassembly of your bq27x00_update?

    It comes from power_supply_changed, probably omitted because
    queue_work is a tail function of power_supply_changed. It's probably
    something i2c specific, I could try bisecting it for you if you like,
    I know it doesn't happen before this series.
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