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can: rcar_canfd: rcar_canfd_channel_probe(): register the CAN device when fully ready

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[ Upstream commit c5048a7b2c ]

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@bp.renesas.com
Reported-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Pavel Machek <pavel@denx.de>
Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Lad Prabhakar 2022-02-21 22:59:35 +00:00 committed by Greg Kroah-Hartman
parent ebe106eac6
commit efdd92c18e
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/can/rcar/rcar_canfd.c
View File

@ -1598,15 +1598,15 @@ static int rcar_canfd_channel_probe(struct rcar_canfd_global *gpriv, u32 ch,
netif_napi_add(ndev, &priv->napi, rcar_canfd_rx_poll, netif_napi_add(ndev, &priv->napi, rcar_canfd_rx_poll,
RCANFD_NAPI_WEIGHT); RCANFD_NAPI_WEIGHT);
spin_lock_init(&priv->tx_lock);
devm_can_led_init(ndev);
gpriv->ch[priv->channel] = priv;
err = register_candev(ndev); err = register_candev(ndev);
if (err) { if (err) {
dev_err(&pdev->dev, dev_err(&pdev->dev,
"register_candev() failed, error %d\n", err); "register_candev() failed, error %d\n", err);
goto fail_candev; 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); dev_info(&pdev->dev, "device registered (channel %u)\n", priv->channel);
return 0; return 0;