[PATCH v6 071/102] spi: ich: Correct max-size bug in ich_spi_adjust_size()

[Simon Glass]

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 at chromium.org>
---

Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

 drivers/spi/ich.c | 8 +++++---
 1 file 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);
-- 
2.24.0.393.g34dc348eaf-goog