Minas Harutyunyan <Minas.Harutyunyan@xxxxxxxxxxxx> writes:
> Hi Martin,
>
> On 6/29/2020 10:03 PM, Martin Blumenstingl wrote:
>> Call dwc2_debugfs_exit() when usb_add_gadget_udc() has failed. This
>> ensure that the debugfs entries created by dwc2_debugfs_init() are
>> cleaned up in the error path.
>>
>> Fixes: 207324a321a866 ("usb: dwc2: Postponed gadget registration to the udc class driver")
>> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
>> ---
>> This patch is compile-tested only. I found this while trying to
>> understand the latest changes to dwc2/platform.c.
>>
>>
>> drivers/usb/dwc2/platform.c | 4 +++-
>> 1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
>> index c347d93eae64..02b6da7e21d7 100644
>> --- a/drivers/usb/dwc2/platform.c
>> +++ b/drivers/usb/dwc2/platform.c
>> @@ -582,12 +582,14 @@ static int dwc2_driver_probe(struct platform_device *dev)
>> retval = usb_add_gadget_udc(hsotg->dev, &hsotg->gadget);
>> if (retval) {
>> dwc2_hsotg_remove(hsotg);
>> - goto error_init;
>> + goto error_debugfs;
>> }
>> }
>> #endif /* CONFIG_USB_DWC2_PERIPHERAL || CONFIG_USB_DWC2_DUAL_ROLE */
>> return 0;
>>
>> +error_debugfs:
>> + dwc2_debugfs_exit(hsotg);
>> error_init:
>> if (hsotg->params.activate_stm_id_vb_detection)
>> regulator_disable(hsotg->usb33d);
>>
> I'm Ok with this fix. One more thing. I missed to remove hcd also in
> fail case. Could you please add dwc2_hcd_remove() call after
> dwc2_debugfs_exit(hsotg) and submit as patch:
>
> +error_debugfs:
> + dwc2_debugfs_exit(hsotg);
> + if (hsotg->hcd_enabled)
> + dwc2_hcd_remove(hsotg);
> error_init:
looks like it should be a separate patch though. Right?
--
balbi
Attachment:
signature.asc
Description: PGP signature
