mtd: spi-nor: sfdp: Fix index value for SCCR dwords

BugLink: https://bugs.launchpad.net/bugs/2011425
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@infineon.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Michael Walle <michael@walle.cc>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/d8a2a77c2c95cf776e7dcae6392d29fdcf5d6307.1672026365.git.Takahiro.Kuwano@infineon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>

diff --git a/drivers/mtd/spi-nor/sfdp.c b/drivers/mtd/spi-nor/sfdp.c
index 8d158243fe493335854193b6be40a935a70e923f..223906606ecb5a3fba1352e42ed0d412b08489e0 100644 (file)
--- a/drivers/mtd/spi-nor/sfdp.c
+++ b/drivers/mtd/spi-nor/sfdp.c
@@ -1228,7 +1228,7 @@ static int spi_nor_parse_sccr(struct spi_nor *nor,
 
        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: