From: Frank Schaefer <fschaefer.oss@googlemail.com>
Date: Thu, 18 Sep 2014 20:55:45 +0000 (-0300)
Subject: [media] em28xx-v4l: get rid of field "users" in struct em28xx_v4l2"
X-Git-Tag: fixes-for-v3.18-merge-window~76^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8e2c8717c1812628b5538c05250057b37c66fdbe;p=pandora-kernel.git

[media] em28xx-v4l: get rid of field "users" in struct em28xx_v4l2"

This reverts commit 747dba7de2a51a3db58b665ed3bc8c07921546ec.

It breaks concurrent vbi and video capturing:
While v4l2->users is the number of users of the whole device (all device nodes),
v4l2_fh_is_singular() only checks the number of users of a specific device node.
As a result. if one device node is open and a second device node is opened
(closed), the device is reinitialized (streaming is stopped).

Reported-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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