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authorColin Ian King <colin.king@canonical.com>2020-12-07 17:24:10 +0300
committerGuenter Roeck <linux@roeck-us.net>2020-12-11 18:42:27 +0300
commite1d15969635ca61aa12091a53dc5d148e5621782 (patch)
treef312d35b1e3e7836071ad32f41d4b15a28af043a /drivers/hwmon
parent966ead9153c25ee08d14a494585df4439b210474 (diff)
downloadlinux-e1d15969635ca61aa12091a53dc5d148e5621782.tar.xz
hwmon: (ltc2992) Fix less than zero comparisons with an unsigned integer
There are several occurrances of a less than zero error check on a u32 unsigned integer. These will never be true. Fix this by making reg_value a plain int. Addresses-Coverity: ("Unsigned comparison against zero") Fixes: e126370240e0 ("hwmon: (ltc2992) Add support") Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20201207142410.168987-1-colin.king@canonical.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/ltc2992.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/hwmon/ltc2992.c b/drivers/hwmon/ltc2992.c
index 69dbb5aa5dc2..4382105bf142 100644
--- a/drivers/hwmon/ltc2992.c
+++ b/drivers/hwmon/ltc2992.c
@@ -480,7 +480,7 @@ static int ltc2992_read_gpios_in(struct device *dev, u32 attr, int nr_gpio, long
static int ltc2992_read_in_alarm(struct ltc2992_state *st, int channel, long *val, u32 attr)
{
- u32 reg_val;
+ int reg_val;
u32 mask;
if (attr == hwmon_in_max_alarm)
@@ -534,7 +534,7 @@ static int ltc2992_read_in(struct device *dev, u32 attr, int channel, long *val)
static int ltc2992_get_current(struct ltc2992_state *st, u32 reg, u32 channel, long *val)
{
- u32 reg_val;
+ int reg_val;
reg_val = ltc2992_read_reg(st, reg, 2);
if (reg_val < 0)
@@ -558,7 +558,7 @@ static int ltc2992_set_current(struct ltc2992_state *st, u32 reg, u32 channel, l
static int ltc2992_read_curr_alarm(struct ltc2992_state *st, int channel, long *val, u32 attr)
{
- u32 reg_val;
+ int reg_val;
u32 mask;
if (attr == hwmon_curr_max_alarm)
@@ -609,7 +609,7 @@ static int ltc2992_read_curr(struct device *dev, u32 attr, int channel, long *va
static int ltc2992_get_power(struct ltc2992_state *st, u32 reg, u32 channel, long *val)
{
- u32 reg_val;
+ int reg_val;
reg_val = ltc2992_read_reg(st, reg, 3);
if (reg_val < 0)
@@ -633,7 +633,7 @@ static int ltc2992_set_power(struct ltc2992_state *st, u32 reg, u32 channel, lon
static int ltc2992_read_power_alarm(struct ltc2992_state *st, int channel, long *val, u32 attr)
{
- u32 reg_val;
+ int reg_val;
u32 mask;
if (attr == hwmon_power_max_alarm)