diff options
| -rw-r--r-- | drivers/usb/dwc3/ep0.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 69a4e43ddf5..24b447e40bc 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -422,8 +422,15 @@ static int dwc3_ep0_set_address(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) u32 reg; addr = le16_to_cpu(ctrl->wValue); - if (addr > 127) + if (addr > 127) { + dev_dbg(dwc->dev, "invalid device address %d\n", addr); return -EINVAL; + } + + if (dwc->dev_state == DWC3_CONFIGURED_STATE) { + dev_dbg(dwc->dev, "trying to set address when configured\n"); + return -EINVAL; + } reg = dwc3_readl(dwc->regs, DWC3_DCFG); reg &= ~(DWC3_DCFG_DEVADDR_MASK); |