staging: iio: tsl2x7x_core: Fix standard deviation calculation

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commit cf6c77323a upstream.

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: 3c97c08b57 ("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>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

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Eva Rachel Retuya 2017-03-20 19:27:05 +08:00 • committed by Ben Hutchings

parent 7a960cbd94

commit 2912422b90

1 changed files with 1 additions and 1 deletions

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drivers/staging/iio/light/tsl2x7x_core.c

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