summaryrefslogtreecommitdiffstats
path: root/drivers/net/can/usb
diff options
context:
space:
mode:
authorOliver Hartkopp <oliver@hartkopp.net>2010-01-12 02:00:46 -0800
committerDavid S. Miller <davem@davemloft.net>2010-01-12 02:00:46 -0800
commit3ccd4c6167d3b39d52631767ebbf8b5677c5855d (patch)
treebfcb801edebd00e8b30e897038bad7fee39625cc /drivers/net/can/usb
parentd218d11133d888f9745802146a50255a4781d37a (diff)
downloadop-kernel-dev-3ccd4c6167d3b39d52631767ebbf8b5677c5855d.zip
op-kernel-dev-3ccd4c6167d3b39d52631767ebbf8b5677c5855d.tar.gz
can: Unify droping of invalid tx skbs and netdev stats
To prevent the CAN drivers to operate on invalid socketbuffers the skbs are now checked and silently dropped at the xmit-function consistently. Also the netdev stats are consistently using the CAN data length code (dlc) for [rx|tx]_bytes now. Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/can/usb')
-rw-r--r--drivers/net/can/usb/ems_usb.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index efbb05c7..ddb17e2 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -767,6 +767,9 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne
size_t size = CPC_HEADER_SIZE + CPC_MSG_HEADER_LEN
+ sizeof(struct cpc_can_msg);
+ if (can_dropped_invalid_skb(netdev, skb))
+ return NETDEV_TX_OK;
+
/* create a URB, and a buffer for it, and copy the data to the URB */
urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!urb) {
OpenPOWER on IntegriCloud