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usb: gadget: core: do not try to disconnect gadget if it is not connected

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Current UDC core connects gadget during the loading gadget flow
(udc_bind_to_driver->usb_udc_connect_control), but for
platforms which do not connect gadget if the VBUS is not there,
they call usb_gadget_disconnect, but the gadget is not connected
at this time, notify disconnecton for the gadget driver is meaningless
at this situation.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This commit is contained in:
Peter Chen 2020-08-11 10:00:26 +08:00 committed by Felipe Balbi
parent 8266b08ed9
commit 5a1da544e5
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/gadget/udc/core.c
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@ -715,6 +715,9 @@ int usb_gadget_disconnect(struct usb_gadget *gadget)
goto out;
}
if (!gadget->connected)
goto out;
if (gadget->deactivated) {
/*
* If gadget is deactivated we only save new state.