can: ti_hecc: Fix napi poll return value for repoll

commit f6c23b174c3c96616514827407769cbcfc8005cf upstream.

After commit d75b1ade567f ("net: less interrupt masking in NAPI") napi
repoll is done only when work_done == budget.
So we need to return budget if there are still packets to receive.

Signed-off-by: Oliver Stäbler <oliver.staebler@bytesatwork.ch>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c
index 6749b18..4d01d7b 100644 (file)
--- a/drivers/net/can/ti_hecc.c
+++ b/drivers/net/can/ti_hecc.c
@@ -652,6 +652,9 @@ static int ti_hecc_rx_poll(struct napi_struct *napi, int quota)
                mbx_mask = hecc_read(priv, HECC_CANMIM);
                mbx_mask |= HECC_TX_MBOX_MASK;
                hecc_write(priv, HECC_CANMIM, mbx_mask);
+       } else {
+               /* repoll is done only if whole budget is used */
+               num_pkts = quota;
        }
 
        return num_pkts;