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From: Anssi Hannula <anssi.hannula@bitwise.fi>
To: Jimmy Assarsson <extja@kvaser.com>
Cc: linux-can@vger.kernel.org, Marc Kleine-Budde <mkl@pengutronix.de>,
	linux-kernel@vger.kernel.org
Subject: [PATCH 07/12] can: kvaser_usb_leaf: Fix CAN state after restart
Date: Mon, 16 May 2022 16:47:43 +0300	[thread overview]
Message-ID: <20220516134748.3724796-8-anssi.hannula@bitwise.fi> (raw)
In-Reply-To: <20220516134748.3724796-1-anssi.hannula@bitwise.fi>

can_restart() expects CMD_START_CHIP to set the error state to
ERROR_ACTIVE as it calls netif_carrier_on() immediately afterwards.

Otherwise the user may immediately trigger restart again and hit a
BUG_ON() in can_restart().

Fix kvaser_usb_leaf set_mode(CMD_START_CHIP) to set the expected state.

Fixes: 080f40a6fa28 ("can: kvaser_usb: Add support for Kvaser CAN/USB devices")
Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi>
---
 drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
index 2d30a662edb5..5f27c00179c1 100644
--- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
+++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
@@ -1411,6 +1411,8 @@ static int kvaser_usb_leaf_set_mode(struct net_device *netdev,
 		err = kvaser_usb_leaf_simple_cmd_async(priv, CMD_START_CHIP);
 		if (err)
 			return err;
+
+		priv->can.state = CAN_STATE_ERROR_ACTIVE;
 		break;
 	default:
 		return -EOPNOTSUPP;
-- 
2.34.1


  parent reply	other threads:[~2022-05-16 13:55 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-16 13:47 [PATCH 00/12] can: kvaser_usb: Various fixes Anssi Hannula
2022-05-16 13:47 ` [PATCH 01/12] can: kvaser_usb_leaf: Fix overread with an invalid command Anssi Hannula
2022-05-28  7:34   ` Jimmy Assarsson
2022-05-16 13:47 ` [PATCH 02/12] can: kvaser_usb: Fix use of uninitialized completion Anssi Hannula
2022-05-28  7:34   ` Jimmy Assarsson
2022-05-16 13:47 ` [PATCH 03/12] can: kvaser_usb: Fix possible completions during init_completion Anssi Hannula
2022-05-28  7:34   ` Jimmy Assarsson
2022-05-16 13:47 ` [PATCH 04/12] can: kvaser_usb: Mark Mini PCIe 2xHS as supporting error counters Anssi Hannula
2022-05-28  7:37   ` Jimmy Assarsson
2022-05-30 10:55     ` Anssi Hannula
2022-05-16 13:47 ` [PATCH 05/12] can: kvaser_usb_leaf: Set Warning state even without bus errors Anssi Hannula
2022-05-28  7:35   ` Jimmy Assarsson
2022-05-16 13:47 ` [PATCH 06/12] can: kvaser_usb_leaf: Fix TX queue out of sync after restart Anssi Hannula
2022-05-28  7:35   ` Jimmy Assarsson
2022-05-16 13:47 ` Anssi Hannula [this message]
2022-06-06 15:31   ` [PATCH 07/12] can: kvaser_usb_leaf: Fix CAN state " Jimmy Assarsson
2022-05-16 13:47 ` [PATCH 08/12] can: kvaser_usb_leaf: Fix improved state not being reported Anssi Hannula
2022-06-06 15:32   ` Jimmy Assarsson
2022-05-16 13:47 ` [PATCH 09/12] can: kvaser_usb_leaf: Fix silently failing bus params setup Anssi Hannula
2022-05-28  7:37   ` Jimmy Assarsson
2022-05-30 10:55     ` Anssi Hannula
2022-05-16 13:47 ` [PATCH 10/12] can: kvaser_usb_leaf: Fix wrong CAN state after stopping Anssi Hannula
2022-05-28  7:35   ` Jimmy Assarsson
2022-05-16 13:47 ` [PATCH 11/12] can: kvaser_usb_leaf: Ignore stale bus-off after start Anssi Hannula
2022-06-06 15:32   ` Jimmy Assarsson
2022-05-16 13:47 ` [PATCH 12/12] can: kvaser_usb_leaf: Fix bogus restart events Anssi Hannula
2022-05-28  7:35   ` Jimmy Assarsson
2022-05-17  8:41 ` [PATCH 00/12] can: kvaser_usb: Various fixes Jimmy Assarsson
2022-05-28  7:42   ` Jimmy Assarsson
2022-05-30 10:56     ` Anssi Hannula
2022-06-06 15:33       ` Jimmy Assarsson

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