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authorWang Hai <wanghai38@huawei.com>2022-11-17 09:55:27 +0300
committerDavid S. Miller <davem@davemloft.net>2022-11-18 16:00:36 +0300
commit2360f9b8c4e81d242d4cbf99d630a2fffa681fab (patch)
treeb2c3df950499bee21e22015dac617051ccbc5e03 /drivers/net/ethernet
parent0ad6bded175e829c2ca261529c9dce39a32a042d (diff)
downloadlinux-2360f9b8c4e81d242d4cbf99d630a2fffa681fab.tar.xz
net: pch_gbe: fix potential memleak in pch_gbe_tx_queue()
In pch_gbe_xmit_frame(), NETDEV_TX_OK will be returned whether pch_gbe_tx_queue() sends data successfully or not, so pch_gbe_tx_queue() needs to free skb before returning. But pch_gbe_tx_queue() returns without freeing skb in case of dma_map_single() fails. Add dev_kfree_skb_any() to fix it. Fixes: 77555ee72282 ("net: Add Gigabit Ethernet driver of Topcliff PCH") Signed-off-by: Wang Hai <wanghai38@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
-rw-r--r--drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 3f2c30184752..c9ae47128a07 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -1143,6 +1143,7 @@ static void pch_gbe_tx_queue(struct pch_gbe_adapter *adapter,
buffer_info->dma = 0;
buffer_info->time_stamp = 0;
tx_ring->next_to_use = ring_num;
+ dev_kfree_skb_any(skb);
return;
}
buffer_info->mapped = true;