From 17e8351a77397e8a83727eb17e3a3e9b8ab5257a Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Fri, 24 Jul 2015 08:12:54 +0200 Subject: thermal: consistently use int for temperatures MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The thermal code uses int, long and unsigned long for temperatures in different places. Using an unsigned type limits the thermal framework to positive temperatures without need. Also several drivers currently will report temperatures near UINT_MAX for temperatures below 0°C. This will probably immediately shut the machine down due to overtemperature if started below 0°C. 'long' is 64bit on several architectures. This is not needed since INT_MAX °mC is above the melting point of all known materials. Consistently use a plain 'int' for temperatures throughout the thermal code and the drivers. This only changes the places in the drivers where the temperature is passed around as pointer, when drivers internally use another type this is not changed. Signed-off-by: Sascha Hauer Acked-by: Geert Uytterhoeven Reviewed-by: Jean Delvare Reviewed-by: Lukasz Majewski Reviewed-by: Darren Hart Reviewed-by: Heiko Stuebner Reviewed-by: Peter Feuerer Cc: Punit Agrawal Cc: Zhang Rui Cc: Eduardo Valentin Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Jean Delvare Cc: Peter Feuerer Cc: Heiko Stuebner Cc: Lukasz Majewski Cc: Stephen Warren Cc: Thierry Reding Cc: linux-acpi@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-omap@vger.kernel.org Cc: linux-samsung-soc@vger.kernel.org Cc: Guenter Roeck Cc: Rafael J. Wysocki Cc: Maxime Ripard Cc: Darren Hart Cc: lm-sensors@lm-sensors.org Signed-off-by: Zhang Rui --- drivers/input/touchscreen/sun4i-ts.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/sun4i-ts.c b/drivers/input/touchscreen/sun4i-ts.c index c0116994067d..485794376ee5 100644 --- a/drivers/input/touchscreen/sun4i-ts.c +++ b/drivers/input/touchscreen/sun4i-ts.c @@ -191,7 +191,7 @@ static void sun4i_ts_close(struct input_dev *dev) writel(TEMP_IRQ_EN(1), ts->base + TP_INT_FIFOC); } -static int sun4i_get_temp(const struct sun4i_ts_data *ts, long *temp) +static int sun4i_get_temp(const struct sun4i_ts_data *ts, int *temp) { /* No temp_data until the first irq */ if (ts->temp_data == -1) @@ -202,7 +202,7 @@ static int sun4i_get_temp(const struct sun4i_ts_data *ts, long *temp) return 0; } -static int sun4i_get_tz_temp(void *data, long *temp) +static int sun4i_get_tz_temp(void *data, int *temp) { return sun4i_get_temp(data, temp); } @@ -215,14 +215,14 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, char *buf) { struct sun4i_ts_data *ts = dev_get_drvdata(dev); - long temp; + int temp; int error; error = sun4i_get_temp(ts, &temp); if (error) return error; - return sprintf(buf, "%ld\n", temp); + return sprintf(buf, "%d\n", temp); } static ssize_t show_temp_label(struct device *dev, -- cgit v1.2.1