V4L/DVB (9906): v4l2-compat: test for unlocked_ioctl as well.

The v4l_compat_ioctl32() function only tested for the presence of the
ioctl op, not for unlocked_ioctl. So it would always return an error
when used with drivers that use unlocked_ioctl instead of ioctl.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/compat_ioctl32.c

@@ -831,7 +831,7 @@ long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	int ret = -ENOIOCTLCMD;
 
-	if (!file->f_op->ioctl)
+	if (!file->f_op->ioctl && !file->f_op->unlocked_ioctl)
 		return ret;
 
 	switch (cmd) {