Re: [PATCH 11/16] nvme: factor out block backend setup

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 4/15/20 12:24 PM, Klaus Jensen wrote:
> From: Klaus Jensen <k.jensen@samsung.com>
> 
> Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
> ---
>   hw/block/nvme.c | 15 ++++++++++++---
>   1 file changed, 12 insertions(+), 3 deletions(-)
> 
> diff --git a/hw/block/nvme.c b/hw/block/nvme.c
> index e67f578fbf79..f0989cbb4335 100644
> --- a/hw/block/nvme.c
> +++ b/hw/block/nvme.c
> @@ -1348,6 +1348,17 @@ static void nvme_init_state(NvmeCtrl *n)
>       n->cq = g_new0(NvmeCQueue *, n->params.max_ioqpairs + 1);
>   }
>   
> +static int nvme_init_blk(NvmeCtrl *n, Error **errp)
> +{
> +    blkconf_blocksizes(&n->conf);
> +    if (!blkconf_apply_backend_options(&n->conf, blk_is_read_only(n->conf.blk),
> +                                       false, errp)) {
> +        return -1;
> +    }
> +
> +    return 0;

I'm not sure this is a correct usage of the 'propagating errors' API 
(see CODING_STYLE.rst and include/qapi/error.h), I'd expect this 
function to return void, and use a local_error & error_propagate() in 
nvme_realize().

However this works, so:
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> +}
> +
>   static void nvme_realize(PCIDevice *pci_dev, Error **errp)
>   {
>       NvmeCtrl *n = NVME(pci_dev);
> @@ -1369,9 +1380,7 @@ static void nvme_realize(PCIDevice *pci_dev, Error **errp)
>           return;
>       }
>   
> -    blkconf_blocksizes(&n->conf);
> -    if (!blkconf_apply_backend_options(&n->conf, blk_is_read_only(n->conf.blk),
> -                                       false, errp)) {
> +    if (nvme_init_blk(n, errp)) {
>           return;
>       }
>   
>