linux-kernel - [PATCH] thermal: tsens: Remove unnecessary comparison of unsigned integer with

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Message-ID: <20190527160825.GA24219@embeddedor>
Date:   Mon, 27 May 2019 11:08:25 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Amit Kucheria <amit.kucheria@...aro.org>,
        Andy Gross <agross@...nel.org>,
        David Brown <david.brown@...aro.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Eduardo Valentin <edubezval@...il.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     linux-pm@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: [PATCH] thermal: tsens: Remove unnecessary comparison of unsigned
 integer with < 0

There is no need to compare hw_id with < 0 because such comparison
of an unsigned value is always false.

Fix this by removing such comparison.

Addresses-Coverity-ID: 1445440 ("Unsigned compared against 0")
Fixes: 3e6a8fb33084 ("drivers: thermal: tsens: Add new operation to check if a sensor is enabled")
Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
---
 drivers/thermal/qcom/tsens-common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/qcom/tsens-common.c b/drivers/thermal/qcom/tsens-common.c
index 928e8e81ba69..94878ad35464 100644
--- a/drivers/thermal/qcom/tsens-common.c
+++ b/drivers/thermal/qcom/tsens-common.c
@@ -69,7 +69,7 @@ bool is_sensor_enabled(struct tsens_priv *priv, u32 hw_id)
 	u32 val;
 	int ret;
 
-	if ((hw_id > (priv->num_sensors - 1)) || (hw_id < 0))
+	if (hw_id > priv->num_sensors - 1)
 		return -EINVAL;
 	ret = regmap_field_read(priv->rf[SENSOR_EN], &val);
 	if (ret)
-- 
2.21.0