[PATCH 4/9] can: ti_hecc: Fix napi poll return value for repoll

[Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>]

From: Oliver Stäbler <oliver.staebler@xxxxxxxxxxxxxx>

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@xxxxxxxxxxxxxx>
Cc: linux-stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
---
 drivers/net/can/ti_hecc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c
index 4d4941469cfc..db6ea936dc3f 100644
--- 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;
-- 
2.15.0