v4l2_clk_get() may return different error codes other than -EPROBE_DEFER,
so it is better to return the real error code instead.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>