rror: implicit declaration of function 'video_usercopy'
make[3]: *** [drivers/media/video/vino.o] Error 1

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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