From efcd549da9d7e8194b4d2d2f35eff8ce7b4da684 Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Thu, 23 Apr 2020 15:10:16 +0100
Subject: [PATCH] net: phy: bcm54140: fix less than zero comparison on an
unsigned
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@canonical.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Michael Walle <michael@walle.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/phy/bcm54140.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/phy/bcm54140.c b/drivers/net/phy/bcm54140.c
index aa854477e06a3..7341f0126cc44 100644
--- a/drivers/net/phy/bcm54140.c
+++ b/drivers/net/phy/bcm54140.c
@@ -191,7 +191,8 @@ static int bcm54140_hwmon_read_alarm(struct device *dev, unsigned int bit,
static int bcm54140_hwmon_read_temp(struct device *dev, u32 attr, long *val)
{
struct phy_device *phydev = dev_get_drvdata(dev);
- u16 reg, tmp;
+ u16 reg;
+ int tmp;
switch (attr) {
case hwmon_temp_input:
@@ -224,7 +225,8 @@ static int bcm54140_hwmon_read_in(struct device *dev, u32 attr,
int channel, long *val)
{
struct phy_device *phydev = dev_get_drvdata(dev);
- u16 bit, reg, tmp;
+ u16 bit, reg;
+ int tmp;
switch (attr) {
case hwmon_in_input:
--
GitLab