[PATCH] spi: intel: Check number of chip selects after reading the descriptor

[Mika Westerberg <mika.westerberg@linux.intel.com>]

The flash decriptor contains the number of flash components that we use
to figure out how many flash chips there are connected. Therefore we
need to read it first before deciding how many chip selects the
controller has.

Reported-by: Marcin Witkowski <marcin.witkowski@intel.com>
Fixes: 3f03c618bebb ("spi: intel: Add support for second flash chip")
Cc: stable@vger.kernel.org
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/spi/spi-intel.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/spi/spi-intel.c b/drivers/spi/spi-intel.c
index f619212b0d5c..627287925fed 100644
--- a/drivers/spi/spi-intel.c
+++ b/drivers/spi/spi-intel.c
@@ -1368,14 +1368,14 @@ static int intel_spi_populate_chip(struct intel_spi *ispi)
 	if (!spi_new_device(ispi->master, &chip))
 		return -ENODEV;
 
-	/* Add the second chip if present */
-	if (ispi->master->num_chipselect < 2)
-		return 0;
-
 	ret = intel_spi_read_desc(ispi);
 	if (ret)
 		return ret;
 
+	/* Add the second chip if present */
+	if (ispi->master->num_chipselect < 2)
+		return 0;
+
 	chip.platform_data = NULL;
 	chip.chip_select = 1;
 
-- 
2.39.1