diff options
| -rw-r--r-- | drivers/usb/dwc3/debugfs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c index 608639a0dea7..5da4f6082d93 100644 --- a/drivers/usb/dwc3/debugfs.c +++ b/drivers/usb/dwc3/debugfs.c @@ -428,6 +428,9 @@ static ssize_t dwc3_mode_write(struct file *file, if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) return -EFAULT; + if (dwc->dr_mode != USB_DR_MODE_OTG) + return count; + if (!strncmp(buf, "host", 4)) mode = DWC3_GCTL_PRTCAP_HOST; |