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drivers: sensor: tsic_xx6: fix implicit sign extension #81177

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Merged
kartben merged 1 commit into from
Dec 2, 2024
Merged

drivers: sensor: tsic_xx6: fix implicit sign extension #81177

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3 changes: 2 additions & 1 deletion drivers/sensor/tsic_xx6/tsic_xx6.c
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Original file line number Diff line number Diff line change
Expand Up @@ -161,7 +161,8 @@ static void tsic_xx6_get_value(const struct tsic_xx6_config *config, struct tsic
int64_t tmp;

/* Apply the datasheet formula scaled to micro celcius */
tmp = data_bits * (config->higher_temperature_limit - config->lower_temperature_limit);
tmp = (int64_t)data_bits *
(config->higher_temperature_limit - config->lower_temperature_limit);
tmp = tmp * 1000000 / (BIT(config->data_bits) - 1);
tmp += (int64_t)config->lower_temperature_limit * 1000000;

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