[patch] mtd: ndfc: silence an array underflow static checker warning

[Dan Carpenter]

We check "cs" for array overflows but we don't check for underflows and
it upsets the static checkers.

Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c
index 69eaba6..253a644 100644
--- a/drivers/mtd/nand/ndfc.c
+++ b/drivers/mtd/nand/ndfc.c
@@ -203,7 +203,8 @@ static int ndfc_probe(struct platform_device *ofdev)
 	struct ndfc_controller *ndfc;
 	const __be32 *reg;
 	u32 ccr;
-	int err, len, cs;
+	u32 cs;
+	int err, len;
 
 	/* Read the reg property to get the chip select */
 	reg = of_get_property(ofdev->dev.of_node, "reg", &len);