Re: [PATCH] i2c: fix crash with msgs is NULL points

[Jarkko Nikula]

Hi

On 5/10/23 12:23, Mika Westerberg wrote:
> On Wed, May 10, 2023 at 05:17:04PM +0800, wangyouwan wrote:
> > After waking up from sleep, 100% of the time it occurred. I suspected
> > that there was a firmware issue with the machine I was debugging, but
> > other machines did not notice it. Therefore, I attempted to make a
> > modification here to avoid it
>
> Okay then I suggest to investigate what causes the ->msgs to be NULL and
> fix that. When the transfer function is called we expect there to be
> something to be sent out so this should not happen.

Does you kernel include commit 301c8f5c32c8 ("i2c: designware: Fix 
handling of real but unexpected device interrupts")? Vanilla kernels 
after v6.1 have it and also linux-stable v5.15.75 and after.

I'm asking since issue sounds similar and wanted to clarify the kernel 
version you are using.