4.14-stable review patch. If anyone has any objections, please let me know.
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From: Florian Fainelli f.fainelli@gmail.com
[ Upstream commit 60d6e6f0b9e422dd01aeda39257ee0428e5e2a3f ]
bgmac_dma_tx_ring_free() assigns the ctl1 word which is a litle endian 32-bit word without using proper accessors, fix this, and because a length cannot be negative, use unsigned int while at it.
Fixes: 9cde94506eac ("bgmac: implement scatter/gather support") Signed-off-by: Florian Fainelli f.fainelli@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/broadcom/bgmac.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/broadcom/bgmac.c +++ b/drivers/net/ethernet/broadcom/bgmac.c @@ -532,7 +532,8 @@ static void bgmac_dma_tx_ring_free(struc int i;
for (i = 0; i < BGMAC_TX_RING_SLOTS; i++) { - int len = dma_desc[i].ctl1 & BGMAC_DESC_CTL1_LEN; + u32 ctl1 = le32_to_cpu(dma_desc[i].ctl1); + unsigned int len = ctl1 & BGMAC_DESC_CTL1_LEN;
slot = &ring->slots[i]; dev_kfree_skb(slot->skb);