media: imx: capture: Handle errors from v4l2_fh_open()

media: imx: capture: Handle errors from v4l2_fh_open()

If the call to v4l2_fh_open() fails, return the error code instead of
proceeding normally as if nothing happened.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>