usb: dwc2: Add missing cleanups when usb_add_gadget_udc() fails

Call dwc2_debugfs_exit() and dwc2_hcd_remove() (if the HCD was enabled
earlier) when usb_add_gadget_udc() has failed. This ensures that the
debugfs entries created by dwc2_debugfs_init() as well as the HCD are
cleaned up in the error path.

Fixes: 207324a321a866 ("usb: dwc2: Postponed gadget registration to the udc class driver")
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>

diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index db9fd4b..b28e90e 100644 (file)
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -584,12 +584,16 @@ static int dwc2_driver_probe(struct platform_device *dev)
                if (retval) {
                        hsotg->gadget.udc = NULL;
                        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);
+       if (hsotg->hcd_enabled)
+               dwc2_hcd_remove(hsotg);
 error_init:
        if (hsotg->params.activate_stm_id_vb_detection)
                regulator_disable(hsotg->usb33d);