[PATCH] nvme-pci: Use u32 for nvme_dev.q_depth and nvme_queue.q_depth

[Keith Busch]

On Fri, Aug 14, 2020 at 11:34:25PM +0800, John Garry wrote:
> Fix by making onto a u32.
> 
> Also use u32 for nvme_dev.q_depth, as we assign this value from
> nvme_dev.q_depth, and nvme_dev.q_depth will possibly hold 65536 - this
> avoids the same crash as above.
> 
> Fixes: 61f3b8963097 ("nvme-pci: use unsigned for io queue depth")
> Signed-off-by: John Garry <john.garry at huawei.com>

Looks good to me.

Reviewed-by: Keith Busch <kbusch at kernel.org>