From 0e58637eb968c636725dcd6c7055249b4e5326fb Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Fri, 13 Sep 2024 23:07:14 +0200 Subject: [PATCH 2/2] spi: airoha: fix airoha_snand_{write,read}_data data_len estimation 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 Signed-off-by: Lorenzo Bianconi Link: https://patch.msgid.link/20240913-airoha-spi-fixes-v1-2-de2e74ed4664@kernel.org Signed-off-by: Mark Brown --- drivers/spi/spi-airoha-snfi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/spi/spi-airoha-snfi.c +++ b/drivers/spi/spi-airoha-snfi.c @@ -405,7 +405,7 @@ static int airoha_snand_write_data(struc 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 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;