On 10/26/2017 03:33 AM, Ashish Kumar wrote:
> Correcting error handing for qbman_swp_acquire. The return value is zero is
> an error condition since number of buffer copied is zero meaning
> there are no free buffers for allocation.
>
> Signed-off-by: Ashish Kumar <ashish.ku...@nxp.com>
> Signed-off-by: Kushwaha Prabhakar <prabha...@freescale.com>
> ---
> drivers/net/ldpaa_eth/ldpaa_eth.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/ldpaa_eth/ldpaa_eth.c
> b/drivers/net/ldpaa_eth/ldpaa_eth.c
> index f235b62..21be79a 100644
> --- a/drivers/net/ldpaa_eth/ldpaa_eth.c
> +++ b/drivers/net/ldpaa_eth/ldpaa_eth.c
> @@ -334,7 +334,7 @@ static int ldpaa_eth_tx(struct eth_device *net_dev, void
> *buf, int len)
> &buffer_start, 1);
> } while (err == -EBUSY);
>
> - if (err < 0) {
> + if (err <= 0) {
> printf("qbman_swp_acquire() failed\n");
> return -ENOMEM;
> }
>
Since you already check for errors in qbman_swp_acquire(), would it be
better to check if "num" is zero there?
York
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