Hi, Dan
On 2017/10/27 14:40, Dan Carpenter wrote:
> There are several places where we accidentally return success when
> kcalloc() fails.
>
> Fixes: fcb39f6c10b2 ("qed: Add mpa buffer descriptors for storing and processing mpa fpdus")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
>
> diff --git a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
> index 409041eab189..6366f2ef82b7 100644
> --- a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
> +++ b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
> @@ -2585,7 +2585,7 @@ qed_iwarp_ll2_start(struct qed_hwfn *p_hwfn,
> struct qed_ll2_cbs cbs;
> u32 mpa_buff_size;
> u16 n_ooo_bufs;
> - int rc = 0;
> + int rc;
> int i;
>
> iwarp_info = &p_hwfn->p_rdma_info->iwarp;
> @@ -2696,6 +2696,7 @@ qed_iwarp_ll2_start(struct qed_hwfn *p_hwfn,
> if (rc)
> goto err;
>
> + rc = -ENOMEM;
> iwarp_info->partial_fpdus = kcalloc((u16)p_hwfn->p_rdma_info->num_qps,
> sizeof(*iwarp_info->partial_fpdus),
> GFP_KERNEL);
Does the memory allocated here need to be freed when error happens below?
> @@ -2724,7 +2725,7 @@ qed_iwarp_ll2_start(struct qed_hwfn *p_hwfn,
> for (i = 0; i < data.input.rx_num_desc; i++)
> list_add_tail(&iwarp_info->mpa_bufs[i].list_entry,
> &iwarp_info->mpa_buf_list);
> - return rc;
> + return 0;
> err:
> qed_iwarp_ll2_stop(p_hwfn, p_ptt);
>
>
> .
>
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