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/cfmuxl.c b/net/caif/cfmuxl.c
index f8ce0f3d9210..ebfda2c9290b 100644
--- a/net/caif/cfmuxl.c
+++ b/net/caif/cfmuxl.c
@@ -184,7 +184,6 @@ static int cfmuxl_receive(struct cflayer *layr, struct cfpkt *pkt)
 
 static int cfmuxl_transmit(struct cflayer *layr, struct cfpkt *pkt)
 {
-        int ret;
         struct cfmuxl *muxl = container_obj(layr);
         u8 linkid;
         struct cflayer *dn;
@@ -198,11 +197,7 @@ static int cfmuxl_transmit(struct cflayer *layr, struct cfpkt *pkt)
         info->hdr_len += 1;
         linkid = info->channel_id;
         cfpkt_add_head(pkt, &linkid, 1);
-        ret = dn->transmit(dn, pkt);
-        /* Remove MUX protocol header upon error. */
-        if (ret < 0)
-                cfpkt_extr_head(pkt, &linkid, 1);
-        return ret;
+        return dn->transmit(dn, pkt);
 }
 
 static void cfmuxl_ctrlcmd(struct cflayer *layr, enum caif_ctrlcmd ctrl,