From 20b429b013c97cb3d253274003d52bbe8c9c4da1 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Wed, 5 Apr 2017 16:23:28 -0600 Subject: [PATCH] net: smsc95xx: Correct free_pkt() implementation On further review this returns the wrong packet length from the driver. It may not be noticed since protocols will take care of it. Fix it by subtracting the header length from the packet length returned. Signed-off-by: Simon Glass --- drivers/usb/eth/smsc95xx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/eth/smsc95xx.c b/drivers/usb/eth/smsc95xx.c index d4c8ea4a98..26000a5a45 100644 --- a/drivers/usb/eth/smsc95xx.c +++ b/drivers/usb/eth/smsc95xx.c @@ -998,7 +998,7 @@ int smsc95xx_eth_recv(struct udevice *dev, int flags, uchar **packetp) } *packetp = ptr + sizeof(packet_len); - return packet_len; + return packet_len - 4; err: usb_ether_advance_rxbuf(ueth, -1); @@ -1009,7 +1009,7 @@ static int smsc95xx_free_pkt(struct udevice *dev, uchar *packet, int packet_len) { struct smsc95xx_private *priv = dev_get_priv(dev); - packet_len = ALIGN(packet_len, 4); + packet_len = ALIGN(packet_len + sizeof(u32), 4); usb_ether_advance_rxbuf(&priv->ueth, sizeof(u32) + packet_len); return 0; -- 2.25.1