can: add can_free_echo_skb() for upcoming drivers
This patch adds the function can_free_echo_skb to the CAN
device interface to allow upcoming drivers to release echo
skb's in case of error.
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h
index 4a37a56..5824b20 100644
--- a/include/linux/can/dev.h
+++ b/include/linux/can/dev.h
@@ -66,5 +66,6 @@
void can_put_echo_skb(struct sk_buff *skb, struct net_device *dev, int idx);
void can_get_echo_skb(struct net_device *dev, int idx);
+void can_free_echo_skb(struct net_device *dev, int idx);
#endif /* CAN_DEV_H */