From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 4 May 2016 06:21:02 +0000 (+0300)
Subject: usbnet/smsc75xx: silence uninitialized variable warning
X-Git-Tag: Ubuntu-5.13.0-19.19~15806^2~114
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=58ef6a3f64bd837e107a2bbf0571574850a32b8c;p=mirror_ubuntu-jammy-kernel.git

usbnet/smsc75xx: silence uninitialized variable warning

If the fn() calls fail then "buf" is uninitialized.  Just return early
in that situation.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
index c369db99c005..9af9799935db 100644
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -99,9 +99,11 @@ 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 < 0)) {
 		netdev_warn(dev->net, "Failed to read reg index 0x%08x: %d\n",
 			    index, ret);
+		return ret;
+	}
 
 	le32_to_cpus(&buf);
 	*data = buf;