[PATCH 2/4] nvmet: propagate percpu_ref_init() failure in nvmet_ns_enable()

[Christoph Hellwig]

On Thu, Jul 30, 2026 at 12:31:03PM +0800, Guixin Liu wrote:
> The return value of percpu_ref_init() is discarded. At this point ret is
> 0 from the preceding successful steps, so when the allocation inside
> percpu_ref_init() fails the code jumps to the out_pr_exit cleanup chain
> which ends with "return ret", i.e. reports success. The configfs enable
> store then tells userspace the namespace was enabled even though it was
> not and its backing device has already been torn down.

Looks good:

Reviewed-by: Christoph Hellwig <hch at lst.de>