diff options
Diffstat (limited to 'drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c')
| -rw-r--r-- | drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c index 3fbb614..9d759c8 100644 --- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c +++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c @@ -137,6 +137,8 @@ static struct sk_buff *build_linear_skb(struct dpaa2_eth_priv *priv, u16 fd_offset = dpaa2_fd_get_offset(fd); u32 fd_length = dpaa2_fd_get_len(fd); + ch->buf_count--; + skb = build_skb(fd_vaddr, DPAA2_ETH_SKB_SIZE); if (unlikely(!skb)) return NULL; @@ -144,8 +146,6 @@ static struct sk_buff *build_linear_skb(struct dpaa2_eth_priv *priv, skb_reserve(skb, fd_offset); skb_put(skb, fd_length); - ch->buf_count--; - return skb; } @@ -183,7 +183,7 @@ static struct sk_buff *build_frag_skb(struct dpaa2_eth_priv *priv, /* We build the skb around the first data buffer */ skb = build_skb(sg_vaddr, DPAA2_ETH_SKB_SIZE); if (unlikely(!skb)) - return NULL; + goto err_build; sg_offset = dpaa2_sg_get_offset(sge); skb_reserve(skb, sg_offset); @@ -214,6 +214,17 @@ static struct sk_buff *build_frag_skb(struct dpaa2_eth_priv *priv, ch->buf_count -= i + 2; return skb; + +err_build: + /* We still need to subtract the buffers used by this FD from our + * software counter + */ + for (i = 0; i < DPAA2_ETH_MAX_SG_ENTRIES; i++) + if (dpaa2_sg_is_final(&sgt[i])) + break; + ch->buf_count -= i + 2; + + return NULL; } static void free_bufs(struct dpaa2_eth_priv *priv, u64 *buf_array, int count) |