diff options
| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-12-07 13:07:55 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-29 13:40:15 +0100 |
| commit | 1d060fede295f772f82f338fe2dcfe7daf41b3d5 (patch) | |
| tree | a8d51f1720a0ed02982310be87e15b7e330fc92a /drivers/hv | |
| parent | 78d2d2762c6f05b62db4a0ec5c458f7b6e8114db (diff) | |
gpio: max7301: fix driver for use with CONFIG_VMAP_STACK
commit abf221d2f51b8ce7b9959a8953f880a8b0a1400d 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: 0c36ec314735 ("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>
Diffstat (limited to 'drivers/hv')
0 files changed, 0 insertions, 0 deletions