From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Carpenter Subject: [patch] usbnet/smsc75xx: silence uninitialized variable warning Date: Wed, 4 May 2016 09:21:02 +0300 Message-ID: <20160504062102.GE22064@mwanda> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Steve Glendinning Return-path: Content-Disposition: inline Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: netdev.vger.kernel.org If the fn() calls fail then "buf" is uninitialized. Just return early in that situation. Signed-off-by: Dan Carpenter diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index c369db9..9af9799 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; -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html