Re: [PATCH for-5.2 1/3] hw/block/nvme: fix null ns in register namespace

[Philippe Mathieu-Daudé]

On 11/4/20 11:22 AM, Klaus Jensen wrote:
> From: Klaus Jensen <k.jen...@samsung.com>
> 
> Fix dereference after NULL check.
> 
> Reported-by: Coverity (CID 1436128)
> Fixes: b20804946bce ("hw/block/nvme: update nsid when registered")
> Signed-off-by: Klaus Jensen <k.jen...@samsung.com>
> ---
>  hw/block/nvme.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/hw/block/nvme.c b/hw/block/nvme.c
> index fa2cba744b57..080d782f1c2b 100644
> --- a/hw/block/nvme.c
> +++ b/hw/block/nvme.c
> @@ -2562,8 +2562,7 @@ int nvme_register_namespace(NvmeCtrl *n, NvmeNamespace 
> *ns, Error **errp)
>  
>      if (!nsid) {
>          for (int i = 1; i <= n->num_namespaces; i++) {
> -            NvmeNamespace *ns = nvme_ns(n, i);
> -            if (!ns) {
> +            if (!nvme_ns(n, i)) {
>                  nsid = ns->params.nsid = i;

Uh.

Reviewed-by: Philippe Mathieu-Daudé <phi...@redhat.com>

>                  break;
>              }
>