mtd: check for valid pdata inside plat_nand
If plat_nand loads and the platform_data is not properly set it will segfault.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c
index 1bcb520..a47ee68 100644
--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -37,6 +37,11 @@
const char **part_types;
int err = 0;
+ if (!pdata) {
+ dev_err(&pdev->dev, "platform_nand_data is missing\n");
+ return -EINVAL;
+ }
+
if (pdata->chip.nr_chips < 1) {
dev_err(&pdev->dev, "invalid number of chips specified\n");
return -EINVAL;