Re: [PATCH] platform: arm64: qcom-hamoa-ec: reject incomplete responses

[Bryan O'Donoghue <bryan.odonoghue@linaro.org>]

On 29/07/2026 11:08, Anvesh Jain P wrote:
>> -	if (resp[0] >= resp_len)
>> +	if (resp[0] != resp_len - 1)
>>   		return -EINVAL;
>>   
>>   	return 0;
> Thanks for catching this — nice find.
> 
> This is independently fixed in an in-flight series that reworks
> qcom_ec_read() to use raw i2c_transfer() instead of
> i2c_smbus_read_i2c_block_data(), removing the partial-read case
> entirely, and it already has the same resp[0] != resp_len - 1 check.
> That series just hasn't landed yet, so your report stands on its own —
> happy to add a Reported-by: Linmao Li<lilinmao@kylinos.cn> tag on that
> commit when it's re-posted, if that works for you.

What about -stable ?

Seems like we should take this fix and your series should rebase on top 
of the fix instead of the corollary.

That's the way this should work Fixes > New stuff.

Can you add your Review-by/Tested-by and then rebase yourself ?

---
bod