From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Sat, 23 Jan 2010 10:07:53 +0000 (-0300)
Subject: V4L/DVB: uvcvideo: Clamp control values to the minimum and maximum values
X-Git-Tag: v2.6.34-rc1~280^2~48
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e54532e591cd5b9ce77dbc8d9786ae9f600f101a;p=pandora-kernel.git

V4L/DVB: uvcvideo: Clamp control values to the minimum and maximum values

When setting a control, the V4L2 specification requires drivers to
either clamp the control value to the [minimum, maximum] range or return
the -ERANGE error.

Fix the driver to clamp control values to the valid range in
uvc_ctrl_set() and make sure the value differs from the minimum by an
integer multiple of step.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Márton Németh <nm127@freemail.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

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