Files
twx-linux/drivers/gpio
Christophe Leroy 1d060fede2 gpio: max7301: fix driver for use with CONFIG_VMAP_STACK
commit abf221d2f5 upstream.

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: 0c36ec3147 ("gpio: gpio driver for max7301 SPI GPIO expander")
Cc: <stable@vger.kernel.org>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-29 13:40:15 +01:00
..
2016-03-30 10:38:51 +02:00
2018-05-16 10:08:42 +02:00
2016-02-16 00:19:53 +01:00
2016-09-13 10:35:56 +02:00
2016-11-16 20:46:32 +01:00