hwmon : (applesmc) Fix uninitialized variables warnings

Fix the following "maybe used uninitialized" warnings by
initializing the variables to keep the compiler quiet.
There is no "used uninitialized" in this case.

  CC [M]  drivers/hwmon/applesmc.o
drivers/hwmon/applesmc.c: In function ‘applesmc_init_smcreg’:
drivers/hwmon/applesmc.c:595:43: warning: ‘right_light_sensor’
may be used uninitialized in this function [-Wmaybe-uninitialized]
  s->num_light_sensors = left_light_sensor + right_light_sensor;
                                           ^
drivers/hwmon/applesmc.c:540:26: note: ‘right_light_sensor’ was
declared here
  bool left_light_sensor, right_light_sensor;
                          ^
drivers/hwmon/applesmc.c:595:43: warning: ‘left_light_sensor’ may
be used uninitialized in this function [-Wmaybe-uninitialized]
  s->num_light_sensors = left_light_sensor + right_light_sensor;
                                           ^
drivers/hwmon/applesmc.c:540:7: note: ‘left_light_sensor’ was
declared here
  bool left_light_sensor, right_light_sensor;
       ^

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index 1f5e956..0af7fd3 100644 (file)
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -537,7 +537,7 @@ static int applesmc_init_index(struct applesmc_registers *s)
 static int applesmc_init_smcreg_try(void)
 {
        struct applesmc_registers *s = &smcreg;
-       bool left_light_sensor, right_light_sensor;
+       bool left_light_sensor = 0, right_light_sensor = 0;
        unsigned int count;
        u8 tmp[1];
        int ret;