On 10/16/20 8:46 AM, Joakim Zhang wrote:
>>> @@ -2019,6 +2109,7 @@ static int flexcan_probe(struct platform_device
>> *pdev)
>>> priv->clk_src = clk_src;
>>> priv->devtype_data = devtype_data;
>>> priv->reg_xceiver = reg_xceiver;
>>> + priv->can_idx = can_idx;
>>>
>>> if (priv->devtype_data->quirks & FLEXCAN_QUIRK_SUPPORT_FD) {
>>> priv->can.ctrlmode_supported |= CAN_CTRLMODE_FD | @@
>> -2030,6
>>> +2121,10 @@ static int flexcan_probe(struct platform_device *pdev)
>>> priv->can.bittiming_const = &flexcan_bittiming_const;
>>> }
>>>
>>> + err = flexcan_setup_stop_mode(pdev);
>>> + if (err == -EPROBE_DEFER)
>>> + return -EPROBE_DEFER;
>>
>> You need to free "dev". What about moving this directly before allocating
>> dev.
>
> Yes, need free "dev" here if defer probe. Flexcan_priv has not allocated
> before allocating dev, but we need initialize and check it when setup stop
> mode.Right, please take care of freeing all ressouces in case of defered probe. >> Do you have to undo device_set_wakeup_capable() and >> device_set_wakeup_enable() in case of a failure and/or on flexcan_remove()? > > Yes, should invoke device_wakeup_disable() in flexcan_remove. Make it so. regards, Marc -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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