Re: [patch] infiniband: remove dead code

[Thadeu Lima de Souza Cascardo <cascardo-DmMZpsCg3uxeGPcbtGPokg@public.gmane.org>]

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On Mon, Mar 15, 2010 at 11:23:32AM +0300, Dan Carpenter wrote:
> "ret" is initialized to -ENOMEM so we don't need to set it here.
> 
> Signed-off-by: Dan Carpenter <error27-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> 
> diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c
> index 308d17b..8fa6997 100644
> --- a/drivers/infiniband/ulp/iser/iser_verbs.c
> +++ b/drivers/infiniband/ulp/iser/iser_verbs.c
> @@ -148,10 +148,8 @@ static int iser_create_ib_conn_res(struct iser_conn *ib_conn)
>  	device = ib_conn->device;
>  
>  	ib_conn->login_buf = kmalloc(ISER_RX_LOGIN_SIZE, GFP_KERNEL);
> -	if (!ib_conn->login_buf) {
> +	if (!ib_conn->login_buf)
>  		goto alloc_err;
> -		ret = -ENOMEM;
> -	}
>  
>  	ib_conn->login_dma = ib_dma_map_single(ib_conn->device->ib_device,
>  				(void *)ib_conn->login_buf, ISER_RX_LOGIN_SIZE,
> @@ -160,10 +158,9 @@ static int iser_create_ib_conn_res(struct iser_conn *ib_conn)
>  	ib_conn->page_vec = kmalloc(sizeof(struct iser_page_vec) +
>  				    (sizeof(u64) * (ISCSI_ISER_SG_TABLESIZE +1)),
>  				    GFP_KERNEL);
> -	if (!ib_conn->page_vec) {
> -		ret = -ENOMEM;
> +	if (!ib_conn->page_vec)
>  		goto alloc_err;
> -	}
> +
>  	ib_conn->page_vec->pages = (u64 *) (ib_conn->page_vec + 1);
>  
>  	params.page_shift        = SHIFT_4K;

If there's a failure while allocating page_vec, login_buf will not be
released. A single extra label should solve this.

Regards,
Cascardo.

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