diff options
| -rw-r--r-- | drivers/usb/gadget/composite.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index acb925be0482..9b1b43a80b14 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -737,6 +737,16 @@ static int set_config(struct usb_composite_dev *cdev, unsigned power = gadget_is_otg(gadget) ? 8 : 100; int tmp; + /* + * ignore 2nd time SET_CONFIGURATION + * only for same config value twice. + */ + if (cdev->config && (cdev->config->bConfigurationValue == number)) { + DBG(cdev, "already in the same config with value %d\n", + number); + return 0; + } + if (number) { list_for_each_entry(c, &cdev->configs, list) { if (c->bConfigurationValue == number) { |