Hi Felipe, On 7/23/2020 5:03 PM, Felipe Balbi wrote: > Minas Harutyunyan <[email protected]> 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 <[email protected]> >>> --- >>> 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?
v2 of this patch already submitted by Martin Blumenstingl <[email protected]> on 7/4/2020 with fix related to dwc2_hcd_remove() and I acked it: [PATCH for-5.8 v2] usb: dwc2: Add missing cleanups when usb_add_gadget_udc() fails Thanks, Minas >
