From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Date: Thu, 22 Jan 2015 23:34:02 +0000 (+0100)
Subject: iio: imu: adis16400: Fix sign extension
X-Git-Tag: v3.2.69~203
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=486b2b811cd5ba7f51498cd99105bcd3a3d39f9d;p=pandora-kernel.git

iio: imu: adis16400: Fix sign extension

commit 19e353f2b344ad86cea6ebbc0002e5f903480a90 upstream.

The intention is obviously to sign-extend a 12 bit quantity. But
because of C's promotion rules, the assignment is equivalent to "val16
&= 0xfff;". Use the proper API for this.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
[bwh: Backported to 3.2: adjust filename, context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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