[PATCH] nvme: don't call blk_mq_{,un}quiesce_tagset when ctrl->tagset is NULL

[Christoph Hellwig]

On Wed, Nov 16, 2022 at 03:20:23PM +0200, Sagi Grimberg wrote:
>>   {
>> +	if (!ctrl->tagset)
>> +		return;
>
> Can this be placed in the pci code instead?

There's nothing PCIe-specific about this case.  All fabrics drivers
support controllers with I/O queues and thus the I/O tagset, e.g.
discovery controllers.