mtd: rawnand: Add a check in of_get_nand_secure_regions()
[ Upstream commit 14f97f0b ] Check for whether of_property_count_elems_of_size() returns a negative error code. Fixes: 13b89768 ("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>
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