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Date: Wed, 9 Jun 2021 11:24:48 +0100 From: Colin King <colin.king@...onical.com> To: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Oleksij Rempel <linux@...pel-privat.de>, linux-usb@...r.kernel.org, netdev@...r.kernel.org Cc: kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH 2/2][next][V2] net: usb: asix: ax88772: Fix less than zero comparison of a u16 From: Colin Ian King <colin.king@...onical.com> The comparison of the u16 priv->phy_addr < 0 is always false because phy_addr is unsigned. Fix this by assigning the return from the call to function asix_read_phy_addr to int ret and using this for the less than zero error check comparison. Fixes: 7e88b11a862a ("net: usb: asix: refactor asix_read_phy_addr() and handle errors on return") Addresses-Coverity: ("Unsigned compared against 0") Signed-off-by: Colin Ian King <colin.king@...onical.com> --- V2: fix up return check. --- drivers/net/usb/ax88172a.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/usb/ax88172a.c b/drivers/net/usb/ax88172a.c index 2e2081346740..530947d7477b 100644 --- a/drivers/net/usb/ax88172a.c +++ b/drivers/net/usb/ax88172a.c @@ -205,11 +205,11 @@ static int ax88172a_bind(struct usbnet *dev, struct usb_interface *intf) goto free; } - priv->phy_addr = asix_read_phy_addr(dev, priv->use_embdphy); - if (priv->phy_addr < 0) { - ret = priv->phy_addr; + ret = asix_read_phy_addr(dev, priv->use_embdphy); + if (ret < 0) goto free; - } + + priv->phy_addr = ret; ax88172a_reset_phy(dev, priv->use_embdphy); -- 2.31.1
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