From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit 14f97f0b8e2b9950c028d0cb7311ffe26a3cc1c0 ]
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 dan.carpenter@oracle.com Reviewed-by: Manivannan Sadhasivam mani@kernel.org Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com Link: https://lore.kernel.org/linux-mtd/YMtQFXE0F1w7mUh+@mwanda Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mtd/nand/raw/nand_base.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c index fb072c444495..b18c089a7dca 100644 --- a/drivers/mtd/nand/raw/nand_base.c +++ b/drivers/mtd/nand/raw/nand_base.c @@ -5059,8 +5059,8 @@ 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),