[PATCH net] net: broadcom: bcm4908_enet: fix RX path possible mem leak

[Rafał Miłecki]

From: Rafał Miłecki <ra...@milecki.pl>

After filling RX ring slot with new skb it's required to free old skb.
Immediately on error or later in the net subsystem.

Signed-off-by: Rafał Miłecki <ra...@milecki.pl>
---
 drivers/net/ethernet/broadcom/bcm4908_enet.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/broadcom/bcm4908_enet.c 
b/drivers/net/ethernet/broadcom/bcm4908_enet.c
index 9be33dc98072..7983c7a9fca9 100644
--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c
@@ -570,6 +570,7 @@ static int bcm4908_enet_poll(struct napi_struct *napi, int 
weight)
 
                if (len < ETH_ZLEN ||
                    (ctl & (DMA_CTL_STATUS_SOP | DMA_CTL_STATUS_EOP)) != 
(DMA_CTL_STATUS_SOP | DMA_CTL_STATUS_EOP)) {
+                       kfree_skb(slot.skb);
                        enet->netdev->stats.rx_dropped++;
                        break;
                }
-- 
2.26.2