gen_nand: Test if nr_chips field is valid

Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
mariux64 · Aug 12, 2010 · 01cd2ab · 01cd2ab
1 parent ef56609
commit 01cd2ab
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c
@@ -37,6 +37,11 @@ static int __devinit plat_nand_probe(struct platform_device *pdev)
 	struct resource *res;
 	int err = 0;
 
+	if (pdata->chip.nr_chips < 1) {
+		dev_err(&pdev->dev, "invalid number of chips specified\n");
+		return -EINVAL;
+	}
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res)
 		return -ENXIO;