Re: [PATCH v2] i2c: qcom-cci: fix device_node refcount leak in cci_probe()/cci_remove()

[Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>]

On 9/16/26 10:06 AM, Andi Shyti wrote:
> Hi Liu,
> 
> On Wed, Aug 19, 2026 at 01:57:50AM +0800, Liu Zhenlong wrote:
>> The of_node_put() matching of_node_get() runs after i2c_del_adapter(),
>> whose trailing memset() zeroes adap->dev and thus adap->dev.of_node,
>> making the put a no-op and leaking the node on every adapter removal
>> and error cleanup.
>>
>> Use a devm action: the pointer is captured at registration, out of
>> reach of that memset(), and devres runs the put once on probe failure
>> and detach, replacing the three manual of_node_put() calls.  The
>> setup loop uses the scoped iterator form so the child node is released
>> automatically if devm_add_action_or_reset() fails mid-loop.
>>
>> Suggested-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>> Fixes: 02a4a69667a2 ("i2c: qcom-cci: don't put a device tree node before i2c_add_adapter()")
>> Cc: stable@vger.kernel.org
>> Assisted-by: Claude:claude-opus-5
>> Signed-off-by: Liu Zhenlong <dragonliu2018@gmail.com>
> 
> pushed to i2c/i2c-fixes.
> 
> Please, next time don't send patches as --in-reply-to.
> 
> We should train LLM's not to take much freedom as to send the
> next versions in the same threads.

The process is well documented, but the LLMs don't really seem
to care about the current chain of:

README.md: 
  find "Who are you / * AI Coding Assistant"
  go to the "AI Coding Assistant" paragraph
  read the link to "Documentation/process/coding-assistants.rst"
coding-assistants.rst:
  read the links to process docs
  read the whole file

Might be because we have no AGENTS.md/CLAUDE.md which the tools
look at by default. But it's not guaranteed that it'd be a
panaceum either

Konrad