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(parent: d7ed89d) | patch
staging: iio: tsl2x7x_core: Fix standard deviation calculation
authorEva Rachel Retuya <eraretuya@gmail.com>
Mon, 20 Mar 2017 11:27:05 +0000 (19:27 +0800)
committerJonathan Cameron <jic23@kernel.org>
Sat, 25 Mar 2017 16:47:13 +0000 (16:47 +0000)
commitcf6c77323a96fc40309cc8a4921ef206cccdd961
tree2cded1fce62a1f3975f28213dda3bd6a7997e536tree | snapshot (tar.gz zip)
parentd7ed89d5aadf09f1060cd3a9cf07df17447c7392commit | diff
staging: iio: tsl2x7x_core: Fix standard deviation calculation

Standard deviation is calculated as the square root of the variance
where variance is the mean of sample_sum and length. Correct the
computation of statP->stddev in accordance to the proper calculation.

Fixes: 3c97c08b5735 ("staging: iio: add TAOS tsl2x7x driver")
Reported-by: Abhiram Balasubramanian <abhiram@cs.utah.edu>
Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
drivers/staging/iio/light/tsl2x7x_core.c diff | blob | blame | history