The code checks the return value from uclass_first_device as well as that the device exists but it passes on the return value which may be zero if there are no gadget devices. Just check that a device was returned and return -ENODEV otherwise.
Also remove the dev variable which is not really used for anything.
Signed-off-by: Michal Suchanek msuchanek@suse.de Reviewed-by: Simon Glass sjg@chromium.org --- drivers/usb/gadget/ether.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c index 6ce389de9f..43aec7ffa7 100644 --- a/drivers/usb/gadget/ether.c +++ b/drivers/usb/gadget/ether.c @@ -2636,18 +2636,17 @@ static const struct eth_ops usb_eth_ops = {
int usb_ether_init(void) { - struct udevice *dev; struct udevice *usb_dev; int ret;
- ret = uclass_first_device(UCLASS_USB_GADGET_GENERIC, &usb_dev); - if (!usb_dev || ret) { + uclass_first_device(UCLASS_USB_GADGET_GENERIC, &usb_dev); + if (!usb_dev) { pr_err("No USB device found\n"); - return ret; + return -ENODEV; }
- ret = device_bind_driver(usb_dev, "usb_ether", "usb_ether", &dev); - if (!dev || ret) { + ret = device_bind_driver(usb_dev, "usb_ether", "usb_ether", NULL); + if (ret) { pr_err("usb - not able to bind usb_ether device\n"); return ret; }