On 09/04/2015 04:05 PM, Matias Bjørling wrote:
>>
>> So here is a suggestion, register_bm again
>> if we found nvm_dev->bm == NULL in create_target(). And if it is still
>> NULL after that. return an error "nvm: no compatible bm was found"
>> and stop target creating. Otherwise, there would be a NULL Pointer
>> reference problem.
>>
>> That's a real problem I met in my testing and I did this change
>> in my local using. I hope that's useful to you.
>>
> Hi Yang,
> ac
> Similar to this?

Okey, I attached two changes in my local using. I hope that
useful to you.

Yang
>
> diff --git i/drivers/lightnvm/core.c w/drivers/lightnvm/core.c
> index 5e4c2b8..0d2e5e3 100644
> --- i/drivers/lightnvm/core.c
> +++ w/drivers/lightnvm/core.c
> @@ -262,8 +262,9 @@ int nvm_init(struct nvm_dev *dev)
>          }
>
>          if (!ret) {
> -               pr_info("nvm: no compatible bm was found.\n");
> -               return 0;
> +               pr_info("nvm: %s was not initialized due to no
> compatible bm.\n",
> +                                                               dev->name);
> +               return -EINVAL;
>          }
>
>          pr_info("nvm: registered %s with luns: %u blocks: %lu sector
> size: %d\n",
>
>
>
> .
>