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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>