Re: [dpdk-dev] [PATCH 03/10] bus/dpaa: fix management command init calling

[Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>]

On 4/19/21 4:34 PM, Min Hu (Connor) wrote:
> 'bm_mc_init' only return 0, but the function whicl calls int
> check the negative ret, and this is redundant.
> 
> This patch fixed it by not checking the return value.
> 
> Fixes: f38f61e982f8 ("bus/dpaa: add BMAN hardware interfaces")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
> ---
>  drivers/bus/dpaa/base/qbman/bman.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/bus/dpaa/base/qbman/bman.c b/drivers/bus/dpaa/base/qbman/bman.c
> index 8a62907..e1ba2a8 100644
> --- a/drivers/bus/dpaa/base/qbman/bman.c
> +++ b/drivers/bus/dpaa/base/qbman/bman.c
> @@ -70,10 +70,8 @@ struct bman_portal *bman_create_portal(struct bman_portal *portal,
>  		pr_err("Bman RCR initialisation failed\n");
>  		return NULL;
>  	}
> -	if (bm_mc_init(p)) {
> -		pr_err("Bman MC initialisation failed\n");
> -		goto fail_mc;
> -	}
> +	(void)bm_mc_init(p);
> +

As I understand compiler can do it for you and there is no
point to break the code in the case of future changes if
bm_mc_init() starts to return errors.

>  	portal->pools = kmalloc(2 * sizeof(*pools), GFP_KERNEL);
>  	if (!portal->pools)
>  		goto fail_pools;
>