[PATCH net v3 5/7] net: bcm4908_enet: unmap RX buffers on stop with their mapped size

[Kordian Chmielewski]

Since the switch to build_skb() the RX buffers are mapped with
ENET_RX_BUF_DMA_SIZE and slot->len is no longer set for them, but
bcm4908_enet_dma_uninit() still unmaps them with slot->len. Use the
size they were mapped with.

Found by reading the code.

Fixes: 3a1cc23a75ab ("net: broadcom: bcm4908_enet: use build_skb()")
Reviewed-by: Florian Fainelli <florian.fainelli@xxxxxxxxxxxx>
Signed-off-by: Kordian Chmielewski <kudzo51@xxxxxxxxx>
---
 drivers/net/ethernet/broadcom/bcm4908_enet.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bcm4908_enet.c b/drivers/net/ethernet/broadcom/bcm4908_enet.c
index 03de65d9b..4065769da 100644
--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c
@@ -334,7 +334,8 @@ static void bcm4908_enet_dma_uninit(struct bcm4908_enet *enet)
 		slot = &rx_ring->slots[i];
 		if (!slot->buf)
 			continue;
-		dma_unmap_single(dev, slot->dma_addr, slot->len, DMA_FROM_DEVICE);
+		dma_unmap_single(dev, slot->dma_addr, ENET_RX_BUF_DMA_SIZE,
+				 DMA_FROM_DEVICE);
 		skb_free_frag(slot->buf);
 		slot->buf = NULL;
 	}
-- 
2.56.1