Re: [PATCH] st33zp24 fix when using irq mode

["christophe.ricard" <christophe.ricard-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

Hi Peter,

Basically if running a TPM command with a long enough duration (> 
timeout_c), the answer will never be read correctly.
This only appear if using irq mode.

I am actually doing the backport to james tree at the moment and will 
send it later on tonight.

I will send this directly without including stable@...

Best Regards
Christophe

On 19/03/2015 22:34, Peter Hüwe wrote:
> Hi,
>
> great timing :) I just sent the pull request for 4.1 out yesterday :)
> But thanks for spotting and fixing it.
> Found bugs are good bugs, and fixed ones are even better.
>
> Am Donnerstag, 19. März 2015, 22:15:08 schrieb Christophe Ricard:
>> Hi,
>>
>> Please find in this patch a fix that fix an improper command completion
>> wait. This patch apply on top of for-james branch
>> tpm/tpm_infineon: Use struct dev_pm_ops for power management
>> 6b37729bd184fdd44f144c6cc4951b06b55bcf4b
>>
>> *** Note: This bug is also present in kernel 4.0 but will not apply as the
>> driver structure changed between kernel 4.0 and kernel 4.1.
>>
>> A backported version is also going to be sent to <stable-u79uwXL29TZUIDd8j+nm9g@public.gmane.org.org> ?
> Are kernels < 4.0 also affected or was this code introduced in 4.0 ?
>
> How critical is the mentioned 'critical failure' ? What will happen?
> How often does it happen?
>
> If this thing is big enough and kernels < 4.0 are not affected we can try to
> get it into 4.0 still, so no stable. (but I still need the backport :) )
>
>
> If it won't hit 4.0 then backport to 4.0.1 is needed,
> which will be sent to stable@...
> with the upstream commit mentioned.
>
>
> See
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/Documentation/stable_kernel_rules.txt
>
> Thanks,
> Peter
>
>

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