This patch ensures that the statistics related to state error counters
(i. e. warning, passive, and bus-off) are updated even in case the skb
allocation fails. Additionally, the bus-off state is now also handled.
Signed-off-by: Dario Binacchi <dario.binacchi@xxxxxxxxxxxxxxxxxxxx>
---
Changes in v2:
- Added in v2
drivers/net/can/spi/hi311x.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/net/can/spi/hi311x.c b/drivers/net/can/spi/hi311x.c
index b67464df25ff..25d9b32f5701 100644
--- a/drivers/net/can/spi/hi311x.c
+++ b/drivers/net/can/spi/hi311x.c
@@ -663,8 +663,6 @@ static irqreturn_t hi3110_can_ist(int irq, void *dev_id)
u8 rxerr, txerr;
skb = alloc_can_err_skb(net, &cf);
- if (!skb)
- break;
txerr = hi3110_read(spi, HI3110_READ_TEC);
rxerr = hi3110_read(spi, HI3110_READ_REC);
@@ -673,14 +671,15 @@ static irqreturn_t hi3110_can_ist(int irq, void *dev_id)
can_change_state(net, cf, tx_state, rx_state);
if (new_state == CAN_STATE_BUS_OFF) {
- netif_rx(skb);
+ if (skb)
+ netif_rx(skb);
can_bus_off(net);
if (priv->can.restart_ms == 0) {
priv->force_quit = 1;
hi3110_hw_sleep(spi);
break;
}
- } else {
+ } else if (skb) {
cf->can_id |= CAN_ERR_CNT;
cf->data[6] = txerr;
cf->data[7] = rxerr;
--
2.43.0
