Re: [PATCH v2] gpiolib-acpi: Duplicate con_id string when adding it to the crs lookup list

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Mon, Apr 25, 2016 at 3:01 PM,  <ville.syrjala@xxxxxxxxxxxxxxx> wrote:

> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> Calling gpiod_get() from a module and then unloading the module leads to an
> oops due to acpi_can_fallback_to_crs() storing the pointer to the passed
> 'con_id' string onto acpi_crs_lookup_list. The next guy to come along will then
> try to access the string but the memory may now be gone with the module.
> Make a copy of the passed string instead, and store the copy on the list.

Patch applied with the ACKs and queued for fixes.

Yours,
Linus Walleij
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