Re: [PATCH 2/3] net: stmmac: Fix error handling path in 'alloc_dma_tx_desc_resources()'

[Giuseppe CAVALLARO]

On 7/8/2017 9:46 AM, Christophe JAILLET wrote:
> If the first 'kmalloc_array' within the loop fails, we should free what
> as already been allocated, as done in all other error handling path.
>
> Fixes: ce736788e8a9 ("net: stmmac: adding multiple buffers for TX")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@xxxxxx>
> ---
>   drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> index 4322fa4a13e8..07d486a70118 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> @@ -1561,7 +1561,7 @@ static int alloc_dma_tx_desc_resources(struct stmmac_priv *priv)
>   						    sizeof(*tx_q->tx_skbuff_dma),
>   						    GFP_KERNEL);
>   		if (!tx_q->tx_skbuff_dma)
> -			return -ENOMEM;
> +			goto err_dma_buffers;
>   
>   		tx_q->tx_skbuff = kmalloc_array(DMA_TX_SIZE,
>   						sizeof(struct sk_buff *),