Do not update calibsense if prop read fails

 It was observed that in case the android prop read fails,
 we write a 0 value(typically happens in case the property variable
 not present)into the sysfs variable. This caused the resulting ALS
 output to be 0, added a check to filter that condition. Now in case
 the read from the android property fails, we just keep the default
 value for the calibsense variable.

 Issue:GMIN-671

Change-Id: Ifd65f0268dfa345ecf8cd6d40255c1a1fd52a03c
Signed-off-by: suyyala <sridhar.uyyala@intel.com>

diff --git a/enumeration.c b/enumeration.c
index 5c2b9a9..227b691 100644 (file)
--- a/enumeration.c
+++ b/enumeration.c
@@ -88,8 +88,10 @@ static void add_sensor (int dev_num, int catalog_index, int use_polling)
         */
        if (sensor_catalog[catalog_index].type == SENSOR_TYPE_LIGHT) {
                retval = sensor_get_illumincalib(s);
-               sprintf(sysfs_path, ILLUMINATION_CALIBPATH, dev_num);
-               sysfs_write_int(sysfs_path, retval);
+                if (retval > 0) {
+                       sprintf(sysfs_path, ILLUMINATION_CALIBPATH, dev_num);
+                       sysfs_write_int(sysfs_path, retval);
+                }
        }
 
        /* Read name attribute, if available */