diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2022-08-26 18:00:30 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-08-30 23:18:17 -0700 |
| commit | 13a9d08c296228d18289de60b83792c586e1d073 (patch) | |
| tree | b3c62e52539ae2a42bdee561fe44182a39c16c51 | |
| parent | 642b2122c5df332a6df52dd1f91e552bc4356951 (diff) | |
| download | linux-13a9d08c296228d18289de60b83792c586e1d073.tar.gz | |
net: lan966x: improve error handle in lan966x_fdma_rx_get_frame()
Don't just print a warning. Clean up and return an error as well.
Fixes: c8349639324a ("net: lan966x: Add FDMA functionality")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/YwjgDm/SVd5c1tQU@kili
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c b/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c index 6dea7f8c1481..51f8a0816377 100644 --- a/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c +++ b/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c @@ -425,7 +425,8 @@ static struct sk_buff *lan966x_fdma_rx_get_frame(struct lan966x_rx *rx) lan966x_ifh_get_src_port(skb->data, &src_port); lan966x_ifh_get_timestamp(skb->data, ×tamp); - WARN_ON(src_port >= lan966x->num_phys_ports); + if (WARN_ON(src_port >= lan966x->num_phys_ports)) + goto free_skb; skb->dev = lan966x->ports[src_port]->dev; skb_pull(skb, IFH_LEN * sizeof(u32)); @@ -449,6 +450,8 @@ static struct sk_buff *lan966x_fdma_rx_get_frame(struct lan966x_rx *rx) return skb; +free_skb: + kfree_skb(skb); unmap_page: dma_unmap_page(lan966x->dev, (dma_addr_t)db->dataptr, FDMA_DCB_STATUS_BLOCKL(db->status), |