On Fri, Dec 7, 2018 at 2:07 PM Christophe Leroy <[email protected]> wrote:
> spi_read() and spi_write() require DMA-safe memory. When
> CONFIG_VMAP_STACK is selected, those functions cannot be used
> with buffers on stack.
>
> This patch replaces calls to spi_read() and spi_write() by
> spi_write_then_read() which doesn't require DMA-safe buffers.
>
> Fixes: 0c36ec314735 ("gpio: gpio driver for max7301 SPI GPIO expander")
> Cc: <[email protected]>
> Signed-off-by: Christophe Leroy <[email protected]>
Patch applied for fixes.
Yours,
Linus Walleij
