diff options
| author | Simon Glass <sjg@chromium.org> | 2019-12-06 21:42:44 -0700 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2019-12-15 11:44:23 +0800 |
| commit | 43c145b8b3eeb77a31d3dd4810929b14c29003de (patch) | |
| tree | 667a0ca076691f6b13d7a65013a02e40f4c3a5d8 /drivers/spi | |
| parent | c59f2ac175ec895dd7ddb7921c859c641565fef9 (diff) | |
spi: ich: Correct max-size bug in ich_spi_adjust_size()
This incorrectly shortens read operations if there is a maximum write size
but no maximum read size. Fix it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/ich.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/spi/ich.c b/drivers/spi/ich.c index 08c37ca4ab..17b7a0ba0b 100644 --- a/drivers/spi/ich.c +++ b/drivers/spi/ich.c @@ -425,9 +425,11 @@ static int ich_spi_adjust_size(struct spi_slave *slave, struct spi_mem_op *op) page_offset = do_div(aux, ICH_BOUNDARY); } - if (op->data.dir == SPI_MEM_DATA_IN && slave->max_read_size) { - op->data.nbytes = min(ICH_BOUNDARY - page_offset, - slave->max_read_size); + if (op->data.dir == SPI_MEM_DATA_IN) { + if (slave->max_read_size) { + op->data.nbytes = min(ICH_BOUNDARY - page_offset, + slave->max_read_size); + } } else if (slave->max_write_size) { op->data.nbytes = min(ICH_BOUNDARY - page_offset, slave->max_write_size); |