This is a note to let you know that I've just added the patch titled can: rcar_canfd: rcar_canfd_channel_probe(): register the CAN device when fully ready to the 5.16-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: can-rcar_canfd-rcar_canfd_channel_probe-register-the.patch and it can be found in the queue-5.16 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 64079d2c78257f128766021083307de760aa74f3 Author: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> Date: Mon Feb 21 22:59:35 2022 +0000 can: rcar_canfd: rcar_canfd_channel_probe(): register the CAN device when fully ready [ Upstream commit c5048a7b2c23ab589f3476a783bd586b663eda5b ] Register the CAN device only when all the necessary initialization is completed. This patch makes sure all the data structures and locks are initialized before registering the CAN device. Link: https://lore.kernel.org/all/20220221225935.12300-1-prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx Reported-by: Pavel Machek <pavel@xxxxxxx> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> Reviewed-by: Pavel Machek <pavel@xxxxxxx> Reviewed-by: Ulrich Hecht <uli+renesas@xxxxxxxx> Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c index 137eea4c7bad..4871428859fd 100644 --- a/drivers/net/can/rcar/rcar_canfd.c +++ b/drivers/net/can/rcar/rcar_canfd.c @@ -1716,15 +1716,15 @@ static int rcar_canfd_channel_probe(struct rcar_canfd_global *gpriv, u32 ch, netif_napi_add(ndev, &priv->napi, rcar_canfd_rx_poll, RCANFD_NAPI_WEIGHT); + spin_lock_init(&priv->tx_lock); + devm_can_led_init(ndev); + gpriv->ch[priv->channel] = priv; err = register_candev(ndev); if (err) { dev_err(&pdev->dev, "register_candev() failed, error %d\n", err); goto fail_candev; } - spin_lock_init(&priv->tx_lock); - devm_can_led_init(ndev); - gpriv->ch[priv->channel] = priv; dev_info(&pdev->dev, "device registered (channel %u)\n", priv->channel); return 0;