[PATCH] nvme/auth: optimize code redundancy and provide code quality

[Sagi Grimberg]

> Improve code quality. Reduce code redundancy.

Why does this improve code quality? Why does this
reduce code redundancy?

It's just a different style, seems like a useless change to me.

> 
> Signed-off-by: mengfanhui <mengfanhui at kylinos.cn>
> ---
>   drivers/nvme/common/auth.c | 4 +---
>   1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/nvme/common/auth.c b/drivers/nvme/common/auth.c
> index a23ab5c968b9..4f9d06afdc38 100644
> --- a/drivers/nvme/common/auth.c
> +++ b/drivers/nvme/common/auth.c
> @@ -250,9 +250,7 @@ struct nvme_dhchap_key *nvme_auth_transform_key(
>   	if (key->hash == 0) {
>   		key_len = nvme_auth_key_struct_size(key->len);
>   		transformed_key = kmemdup(key, key_len, GFP_KERNEL);
> -		if (!transformed_key)
> -			return ERR_PTR(-ENOMEM);
> -		return transformed_key;
> +		return transformed_key ? transformed_key : ERR_PTR(-ENOMEM);
>   	}
>   	hmac_name = nvme_auth_hmac_name(key->hash);
>   	if (!hmac_name) {
> 
> base-commit: c29901006179c4c87f9335771e50814ec5707239