Unverified Commit 6bb06684 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!4987 net: usb: smsc75xx: Fix uninit-value access in __smsc75xx_read_reg 

Merge Pull Request from: @ci-robot 
 
PR sync from: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/5QQNOQNAWRYVLKYUYHH2K6UK6XVS5YCV/ 
 
https://gitee.com/src-openeuler/kernel/issues/I95AXT 
 
Link:https://gitee.com/openeuler/kernel/pulls/4987

 

Reviewed-by: default avatarYue Haibing <yuehaibing@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents f470ef88 0570a2fa

drivers/net/usb/smsc75xx.c

+3 −1
Original line number Diff line number Diff line
@@ -90,7 +90,9 @@ static int __must_check __smsc75xx_read_reg(struct usbnet *dev, u32 index, 
	ret = fn(dev, USB_VENDOR_REQUEST_READ_REGISTER, USB_DIR_IN

		 | USB_TYPE_VENDOR | USB_RECIP_DEVICE,

		 0, index, &buf, 4);

	if (unlikely(ret < 0)) {

	if (unlikely(ret < 4)) {

		ret = ret < 0 ? ret : -ENODATA;



		netdev_warn(dev->net, "Failed to read reg index 0x%08x: %d\n",

			    index, ret);

		return ret;