can: ti_hecc: Fix napi poll return value for repoll

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>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c
index 4d4941469cfc06bfff3aeafaa0c3562b63702730..db6ea936dc3fc3fca00c939b2db6a938cf5011dc 100644 (file)
--- a/drivers/net/can/ti_hecc.c
+++ b/drivers/net/can/ti_hecc.c
@@ -637,6 +637,9 @@ 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;