From: Hayes Wang hayeswang@realtek.com
[ Upstream commit 46590b545df636aea0f9f7f2100d9963c0af5824 ]
For the unknown device, rtl8152_cfgselector_choose_configuration() should return a negative value. Then, usb_choose_configuration() would set a configuration for CDC ECM or NCM mode. Otherwise, there is no usb interface driver for the device.
Fixes: aa4f2b3e418e ("r8152: Choose our USB config with choose_configuration() rather than probe()") Signed-off-by: Hayes Wang hayeswang@realtek.com Link: https://lore.kernel.org/r/20240308075206.33553-436-nic_swsd@realtek.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/usb/r8152.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 0d0672d2a6545..51fe00c2b896e 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -10078,7 +10078,7 @@ static int rtl8152_cfgselector_choose_configuration(struct usb_device *udev) * driver supports it. */ if (__rtl_get_hw_ver(udev) == RTL_VER_UNKNOWN) - return 0; + return -ENODEV;
/* The vendor mode is not always config #1, so to find it out. */ c = udev->config;