can: rx-offload: can_rx_offload_offload_one(): increment rx_fifo_errors on queue...

[ Upstream commit 4e9016bee3bf0c24963097edace034ff205b565c ]

If the rx-offload skb_queue is full or the skb allocation fails (due to OOM),
the mailbox contents is discarded.

This patch adds the incrementing of the rx_fifo_errors statistics counter.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/can/rx-offload.c b/drivers/net/can/rx-offload.c
index c0e51a2f8e4fc31bdc2c2c176cd9cbdce9d755e7..b068e2320c794c5b1bb0980d78edb192953e4172 100644 (file)
--- a/drivers/net/can/rx-offload.c
+++ b/drivers/net/can/rx-offload.c
@@ -134,8 +134,10 @@ static struct sk_buff *can_rx_offload_offload_one(struct can_rx_offload *offload
 
                ret = offload->mailbox_read(offload, &cf_overflow,
                                            &timestamp, n);
-               if (ret)
+               if (ret) {
                        offload->dev->stats.rx_dropped++;
+                       offload->dev->stats.rx_fifo_errors++;
+               }
 
                return NULL;
        }