[PATCH] nvme-core: Fixing ctrl de-referencing in nvme_init_ctrl

[irvin cote]

Oh sorry I had not understood the term, and I am not too familiar with
fix tags yet, but let's go with regression if it is a good fit.

On Mon, 3 Apr 2023 at 19:37, Sagi Grimberg <sagi at grimberg.me> wrote:
>
>
> > The thing is that after device_initialize is called the reference
> > count for the device is equal to 1. Now the function also calls
> > nvme_get_ctrl which increases the ref-count to 2.
> > However the teardown path only accounts for 1 decrement. This means
> > that if an error were to occur during nvme_init_ctrl, we would return
> > from nvme_probe without having freed the resources of the controller.
>
> Not arguing the bug, just want to understand what Fixes tag it needs,
> so that this can go as far as possible to stable kernels.