On Wed, 19 Feb 2020 16:40:55 +0530
Manivannan Sadhasivam [off-list ref] wrote:

Jakub mistakenly spotted one refcounting issue in one of my patchset:
https://lkml.org/lkml/2020/2/3/926

Then I tried to show him the kernel doc for kref and that's where I got this
example code slightly confusing. And while looking into the log, I noticed that
someone deleted the kref_put in error path mistakenly and that commit got
reverted after that. This issue was even discussed in stack overflow.

http://stackoverflow.com/questions/20093127/why-kref-doc-of-linux-kernel-omits-kref-put-when-kthread-run-fail

So I thought about making it more clear of why the kref_put is needed in error
path.

OK, I've applied it, thanks.

jon