netdev - [PATCH net] can: usb: esd_usb2: esd_usb2_rx_event(): fix the interchange of the CAN RX and TX error counters

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Date:   Thu, 26 Aug 2021 08:44:56 +0200
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, linux-can@...r.kernel.org,
        kernel@...gutronix.de,
        Stefan Mätje <stefan.maetje@....eu>,
        stable@...r.kernel.org, Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH net] can: usb: esd_usb2: esd_usb2_rx_event(): fix the interchange of the CAN RX and TX error counters

From: Stefan Mätje <stefan.maetje@....eu>

This patch fixes the interchanged fetch of the CAN RX and TX error
counters from the ESD_EV_CAN_ERROR_EXT message. The RX error counter
is really in struct rx_msg::data[2] and the TX error counter is in
struct rx_msg::data[3].

Fixes: 96d8e90382dc ("can: Add driver for esd CAN-USB/2 device")
Link: https://lore.kernel.org/r/20210825215227.4947-2-stefan.maetje@esd.eu
Cc: stable@...r.kernel.org
Signed-off-by: Stefan Mätje <stefan.maetje@....eu>
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 drivers/net/can/usb/esd_usb2.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/can/usb/esd_usb2.c b/drivers/net/can/usb/esd_usb2.c
index 66fa8b07c2e6..95ae740fc311 100644
--- a/drivers/net/can/usb/esd_usb2.c
+++ b/drivers/net/can/usb/esd_usb2.c
@@ -224,8 +224,8 @@ static void esd_usb2_rx_event(struct esd_usb2_net_priv *priv,
 	if (id == ESD_EV_CAN_ERROR_EXT) {
 		u8 state = msg->msg.rx.data[0];
 		u8 ecc = msg->msg.rx.data[1];
-		u8 txerr = msg->msg.rx.data[2];
-		u8 rxerr = msg->msg.rx.data[3];
+		u8 rxerr = msg->msg.rx.data[2];
+		u8 txerr = msg->msg.rx.data[3];
 
 		skb = alloc_can_err_skb(priv->netdev, &cf);
 		if (skb == NULL) {

base-commit: ec92e524ee91c98e6ee06807c7d69d9e2fd141bc
-- 
2.32.0