caif: Don't resend if dev_queue_xmit fails.

If CAIF Link Layer returns an error, we no longer try to re-build the
CAIF packet and resend it. Instead, we simply return any transmission
errors to the socket client.

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

1 files changed, 1 insertions, 6 deletions

diff --git a/net/caif/cfserl.c b/net/caif/cfserl.c
index 8303fe3ebf89..2715c84cfa87 100644
--- a/net/caif/cfserl.c
+++ b/net/caif/cfserl.c
@@ -179,15 +179,10 @@ static int cfserl_receive(struct cflayer *l, struct cfpkt *newpkt)
 static int cfserl_transmit(struct cflayer *layer, struct cfpkt *newpkt)
 {
         struct cfserl *layr = container_obj(layer);
-        int ret;
         u8 tmp8 = CFSERL_STX;
         if (layr->usestx)
                 cfpkt_add_head(newpkt, &tmp8, 1);
-        ret = layer->dn->transmit(layer->dn, newpkt);
-        if (ret < 0)
-                cfpkt_extr_head(newpkt, &tmp8, 1);
-
-        return ret;
+        return layer->dn->transmit(layer->dn, newpkt);
 }
 
 static void cfserl_ctrlcmd(struct cflayer *layr, enum caif_ctrlcmd ctrl,