From: Takahiro Kuwano <Takahiro.Kuwano@xxxxxxxxxxxx> commit ad9679f3811899fd1c21dc7bdd715e8e1cfb46b9 upstream. Array index for SCCR 22th DOWRD should be 21. Fixes: 981a8d60e01f ("mtd: spi-nor: Parse SFDP SCCR Map") Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@xxxxxxxxxxxx> Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxx> Reviewed-by: Michael Walle <michael@xxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Link: https://lore.kernel.org/r/d8a2a77c2c95cf776e7dcae6392d29fdcf5d6307.1672026365.git.Takahiro.Kuwano@xxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/mtd/spi-nor/sfdp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/mtd/spi-nor/sfdp.c +++ b/drivers/mtd/spi-nor/sfdp.c @@ -1222,7 +1222,7 @@ static int spi_nor_parse_sccr(struct spi le32_to_cpu_array(dwords, sccr_header->length); - if (FIELD_GET(SCCR_DWORD22_OCTAL_DTR_EN_VOLATILE, dwords[22])) + if (FIELD_GET(SCCR_DWORD22_OCTAL_DTR_EN_VOLATILE, dwords[21])) nor->flags |= SNOR_F_IO_MODE_EN_VOLATILE; out: