Re: [PATCH] spi: spi-omap2-mcspi.c: Add dts for slave device configuration.

[Illia Smyrnov <x0194613@ti.com>]

> @@ -745,6 +781,11 @@ static int omap2_mcspi_setup_transfer(struct
> spi_device *spi,
>          mcspi = spi_master_get_devdata(spi->master);
>          spi_cntrl = mcspi->master;
>
> +       if (!cd && spi->dev.of_node) {
> +               cd = omap2_mcspi_get_slave_ctrldata(spi);
 > +               spi->controller_data = cd;

Here you call omap2_mcspi_get_slave_ctrldata function that allocate 
memory for cd structure, but this memory never freed.

Also, why do you read DT data in omap2_mcspi_setup_transfer function?
Under certain conditions the omap2_mcspi_setup_transfer function may be 
calling for each transfer and each call it will check (!cd && 
spi->dev.of_node) condition.

Consider to move DT data read code from omap2_mcspi_setup_transfer to
omap2_mcspi_setup function and free spi->controller_data pointer in 
omap2_mcspi_cleanup function.