Re: [PATCH] ZYNQ: platsmp: Return -ENOMEM after a failed ioremap() call in zynq_cpun_start()

From: Michal Simek
Date: Thu Apr 30 2020 - 05:20:11 EST


On 30. 04. 20 11:00, Markus Elfring wrote:
>> In ioremap we should return -ENOMEM when it reports an
>> memory allocation failure.
>
> I suggest to improve this change description.
>
> Will the tag âFixesâ be relevant because of the adjusted error code?
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?id=1d2cc5ac6f6668cc15216d51051103c61467d7e8#n183

I don't think this was found by bisection because arm smp code cares
only about 0 - success and !0. I would expect any static program
analysis tool like coccinelle.

Would be good to rewrite that commit message and simply say that
failures from ioremaps returns -ENOMEM.

Thanks,
Michal