From mboxrd@z Thu Jan 1 00:00:00 1970 From: Colin King Date: Mon, 07 Dec 2020 14:24:10 +0000 Subject: [PATCH][next] hwmon: ltc2992: fix less than zero comparisons with an unsigned integer Message-Id: <20201207142410.168987-1-colin.king@canonical.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Jean Delvare , Guenter Roeck , Alexandru Tachici , linux-hwmon@vger.kernel.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org From: Colin Ian King 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 --- drivers/hwmon/ltc2992.c | 10 +++++----- 1 file 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) -- 2.29.2