caif: Handle dev_queue_xmit errors.

Do proper handling of dev_queue_xmit errors in order to
avoid double free of skb and leaks in error conditions.
In cfctrl pending requests are removed when CAIF Link layer goes down.

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/net/caif/cfctrl.h b/include/net/caif/cfctrl.h
index d84416fa175a..9e5425b4a1d7 100644
--- a/include/net/caif/cfctrl.h
+++ b/include/net/caif/cfctrl.h
@@ -124,6 +124,7 @@ int  cfctrl_linkdown_req(struct cflayer *cfctrl, u8 linkid,
 
 struct cflayer *cfctrl_create(void);
 struct cfctrl_rsp *cfctrl_get_respfuncs(struct cflayer *layer);
-void cfctrl_cancel_req(struct cflayer *layr, struct cflayer *adap_layer);
+int cfctrl_cancel_req(struct cflayer *layr, struct cflayer *adap_layer);
+void cfctrl_remove(struct cflayer *layr);
 
 #endif                          /* CFCTRL_H_ */