linux-kernel - Re: [PATCH][next] net: phy: bcm54140: fix less than zero comparison on an unsigned

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Date:   Thu, 23 Apr 2020 15:57:09 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     colin.king@...onical.com
Cc:     andrew@...n.ch, f.fainelli@...il.com, hkallweit1@...il.com,
        linux@...linux.org.uk, michael@...le.cc, linux@...ck-us.net,
        netdev@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] net: phy: bcm54140: fix less than zero
 comparison on an unsigned

From: Colin King <colin.king@...onical.com>
Date: Thu, 23 Apr 2020 15:10:16 +0100

> From: Colin Ian King <colin.king@...onical.com>
> 
> Currently the unsigned variable tmp is being checked for an negative
> error return from the call to bcm_phy_read_rdb and this can never
> be true since tmp is unsigned.  Fix this by making tmp a plain int.
> 
> Addresses-Coverity: ("Unsigned compared against 0")
> Fixes: 4406d36dfdf1 ("net: phy: bcm54140: add hwmon support")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>

Applied.