[PATCH net v2 5/6] net: bcm4908_enet: unmap RX buffers on stop with their mapped size

[Kordian Chmielewski <kudzo51@gmail.com>]

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()")
Signed-off-by: Kordian Chmielewski <kudzo51@gmail.com>
---
 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 7f80e4e24..8ac749c44 100644
--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c
@@ -333,7 +333,8 @@ 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;
 	}
-- 
2.56.0