Re: [PATCH] HID: hid-input: Fix accessing freed memory during driver unbind

[Jiri Kosina]

On Tue, 28 Jul 2015, Krzysztof Kozlowski wrote:

> During unbinding the driver was dereferencing a pointer to memory
> already freed by power_supply_unregister().
> 
> Driver was freeing its internal description of battery through pointers
> stored in power_supply structure. However, because the core owns the
> power supply instance, after calling power_supply_unregister() the
> driver cannot access these members.
> 
> Fix this by using resource-managed allocations so internal data will be
> freed by pointers stored in resource-managed core.
> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
> Reported-by: H.J. Lu <hjl.tools@xxxxxxxxx>
> Fixes: 297d716f6260 ("power_supply: Change ownership from driver to core")
> Cc: <stable@xxxxxxxxxxxxxxx>

Applied to for-4.2/upstream-fixes, thanks.

-- 
Jiri Kosina
SUSE Labs
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