Patch "staging: iio: tsl2x7x_core: Fix standard deviation calculation" has been added to the 4.11-stable tree

This is a note to let you know that I've just added the patch titled

staging: iio: tsl2x7x_core: Fix standard deviation calculation

to the 4.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
staging-iio-tsl2x7x_core-fix-standard-deviation-calculation.patch
and it can be found in the queue-4.11 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Eva Rachel Retuya <[email protected]>
Date: Mon, 20 Mar 2017 19:27:05 +0800
Subject: staging: iio: tsl2x7x_core: Fix standard deviation calculation

From: Eva Rachel Retuya <[email protected]>

commit cf6c77323a96fc40309cc8a4921ef206cccdd961 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.

---
 drivers/staging/iio/light/tsl2x7x_core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -854,7 +854,7 @@ void tsl2x7x_prox_calculate(int *data, i
 		tmp = data[i] - statP->mean;
 		sample_sum += tmp * tmp;
 	}
-	statP->stddev = int_sqrt((long)sample_sum) / length;
+	statP->stddev = int_sqrt((long)sample_sum / length);
 }
 
 /**

Patches currently in stable-queue which might be from [email protected] are

queue-4.11/staging-iio-tsl2x7x_core-fix-standard-deviation-calculation.patch