From: Christoph Hellwig <hch@xxxxxx> commit f4f9fc29e56b6fa9d7fa65ec51d3c82aff99c99b upstream. ns can be NULL at this point, and my move of the check from the original patch by Chaitanya broke this. Fixes: 0ec84df4953b ("nvme-core: check ctrl css before setting up zns") Signed-off-by: Christoph Hellwig <hch@xxxxxx> Signed-off-by: Jens Axboe <axboe@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/nvme/host/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -4022,7 +4022,7 @@ static void nvme_validate_or_alloc_ns(st if (!nvme_multi_css(ctrl)) { dev_warn(ctrl->device, "command set not reported for nsid: %d\n", - ns->head->ns_id); + nsid); break; } nvme_alloc_ns(ctrl, nsid, &ids);