[PATCH] mtd: nand: complete nand_register() arguments check

The patch checks that the "mtd" parameter is accessible before proceeding.

Signed-off-by: Dario Binacchi dario.binacchi@amarulasolutions.com

---

drivers/mtd/nand/raw/nand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/nand.c b/drivers/mtd/nand/raw/nand.c index eacd99c4e275..d31bb580c46a 100644 --- a/drivers/mtd/nand/raw/nand.c +++ b/drivers/mtd/nand/raw/nand.c @@ -52,7 +52,7 @@ int nand_mtd_to_devnum(struct mtd_info *mtd) /* Register an initialized NAND mtd device with the U-Boot NAND command. */ int nand_register(int devnum, struct mtd_info *mtd) { - if (devnum >= CONFIG_SYS_MAX_NAND_DEVICE) + if (!mtd || devnum >= CONFIG_SYS_MAX_NAND_DEVICE) return -EINVAL;

nand_info[devnum] = mtd;