[PATCH 1/2] spi: ich: Limit slave->max_read_size

[Bin Meng]

On Thu, Jul 29, 2021 at 9:32 AM Simon Glass <sjg at chromium.org> wrote:
>
> On Wed, 28 Jul 2021 at 04:29, Bin Meng <bmeng.cn at gmail.com> wrote:
> >
> > Since commit 43c145b8b3ee ("spi: ich: Correct max-size bug in ich_spi_adjust_size()")
> > (in v2020.04-rc1), SPI flash read no longer works with ICH SPI controller
> > in software sequencer mode.
> >
> > ICH controller can only transfer a small number of bytes at once.
> > Before commit 43c145b8b3ee, the logic happens to make sure data.nbytes
> > is limited to slave->max_write_size but after commit 43c145b8b3ee
> > data.nbytes is no longer limited because slave->max_read_size is not
> > initialized with a valid number.
> >
> > Fixes: 43c145b8b3ee ("spi: ich: Correct max-size bug in ich_spi_adjust_size()")
> > Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
> > ---
> >
> >  drivers/spi/ich.c | 6 ++++--
> >  1 file changed, 4 insertions(+), 2 deletions(-)
>
> Reviewed-by: Simon Glass <sjg at chromium.org>

applied to u-boot-x86, thanks!