From 14f97f0b8e2b9950c028d0cb7311ffe26a3cc1c0 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 17 Jun 2021 16:37:25 +0300 Subject: mtd: rawnand: Add a check in of_get_nand_secure_regions() Check for whether of_property_count_elems_of_size() returns a negative error code. Fixes: 13b89768275d ("mtd: rawnand: Add support for secure regions in NAND memory") Signed-off-by: Dan Carpenter Reviewed-by: Manivannan Sadhasivam Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/YMtQFXE0F1w7mUh+@mwanda --- drivers/mtd/nand/raw/nand_base.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/mtd') diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c index 57a583149cc0..cbba46432e39 100644 --- a/drivers/mtd/nand/raw/nand_base.c +++ b/drivers/mtd/nand/raw/nand_base.c @@ -5231,8 +5231,8 @@ static int of_get_nand_secure_regions(struct nand_chip *chip) int nr_elem, i, j; nr_elem = of_property_count_elems_of_size(dn, "secure-regions", sizeof(u64)); - if (!nr_elem) - return 0; + if (nr_elem <= 0) + return nr_elem; chip->nr_secure_regions = nr_elem / 2; chip->secure_regions = kcalloc(chip->nr_secure_regions, sizeof(*chip->secure_regions), -- cgit v1.2.3