Improve the error handling in i2c_imx_dma_request() and let it return an error
indication that the caller then can handle accordingly.
Signed-off-by: NOleksij Rempel <o.rempel@pengutronix.de>
Acked-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>