From: Wang Hai <wanghai38@huawei.com>
Date: Tue, 26 Oct 2021 12:40:15 +0000 (+0800)
Subject: usbnet: fix error return code in usbnet_probe()
X-Git-Tag: accepted/tizen/unified/20230118.172025~6115^2~12
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6f7c88691191e6c52ef2543d6f1da8d360b27a24;p=platform%2Fkernel%2Flinux-rpi.git

usbnet: fix error return code in usbnet_probe()

Return error code if usb_maxpacket() returns 0 in usbnet_probe()

Fixes: 397430b50a36 ("usbnet: sanity check for maxpacket")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Reviewed-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211026124015.3025136-1-wanghai38@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 80432ee..a33d7fb8 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1790,6 +1790,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 	dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1);
 	if (dev->maxpacket == 0) {
 		/* that is a broken device */
+		status = -ENODEV;
 		goto out4;
 	}