6.11-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
[ Upstream commit 0e58637eb968c636725dcd6c7055249b4e5326fb ]
Fix data length written and read in airoha_snand_write_data and
airoha_snand_read_data routines respectively if it is bigger than
SPI_MAX_TRANSFER_SIZE.
Fixes: a403997c1201 ("spi: airoha: add SPI-NAND Flash controller driver")
Tested-by: Christian Marangi <ansuelsmth@xxxxxxxxx>
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
Link: https://patch.msgid.link/20240913-airoha-spi-fixes-v1-2-de2e74ed4664@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/spi/spi-airoha-snfi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-airoha-snfi.c b/drivers/spi/spi-airoha-snfi.c
index be3e4ac42153e..c71be702cf6f6 100644
--- a/drivers/spi/spi-airoha-snfi.c
+++ b/drivers/spi/spi-airoha-snfi.c
@@ -405,7 +405,7 @@ static int airoha_snand_write_data(struct airoha_snand_ctrl *as_ctrl, u8 cmd,
for (i = 0; i < len; i += data_len) {
int err;
- data_len = min(len, SPI_MAX_TRANSFER_SIZE);
+ data_len = min(len - i, SPI_MAX_TRANSFER_SIZE);
err = airoha_snand_set_fifo_op(as_ctrl, cmd, data_len);
if (err)
return err;
@@ -427,7 +427,7 @@ static int airoha_snand_read_data(struct airoha_snand_ctrl *as_ctrl, u8 *data,
for (i = 0; i < len; i += data_len) {
int err;
- data_len = min(len, SPI_MAX_TRANSFER_SIZE);
+ data_len = min(len - i, SPI_MAX_TRANSFER_SIZE);
err = airoha_snand_set_fifo_op(as_ctrl, 0xc, data_len);
if (err)
return err;
--
2.43.0
