Commit 6bdd45d7 authored by Hui Tang's avatar Hui Tang Committed by Miquel Raynal
Browse files

mtd: lpddr2_nvm: Fix possible null-ptr-deref 



It will cause null-ptr-deref when resource_size(add_range) invoked,
if platform_get_resource() returns NULL.

Fixes: 96ba9dd6 ("mtd: lpddr: add driver for LPDDR2-NVM PCM memories")
Signed-off-by: default avatarHui Tang <tanghui20@huawei.com>
Acked-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20221114090240.244172-1-tanghui20@huawei.com
parent 9b533a6e

drivers/mtd/lpddr/lpddr2_nvm.c

+2 −0
Original line number Diff line number Diff line
@@ -433,6 +433,8 @@ static int lpddr2_nvm_probe(struct platform_device *pdev) 


	/* lpddr2_nvm address range */

	add_range = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!add_range)

		return -ENODEV;



	/* Populate map_info data structure */

	*map = (struct map_info) {