diff options
| author |   Yang Yingliang <yangyingliang@huawei.com> | 2022-04-26 16:49:13 +0800 |
|---|---|---|
| committer |   Miquel Raynal <miquel.raynal@bootlin.com> | 2022-04-27 17:15:09 +0200 |
| commit | 9b2152f96f4a243bdfb89027c0d920aa0af810e7 (patch) | |
| tree | e2c7e72474297127e878b831b5a1f83e8fa25992 /drivers/mtd | |
| parent | mtd: rawnand: intel: fix possible null-ptr-deref in ebu_nand_probe() (diff) | |
| download | linux-dev-9b2152f96f4a243bdfb89027c0d920aa0af810e7.tar.xz linux-dev-9b2152f96f4a243bdfb89027c0d920aa0af810e7.zip | |
mtd: rawnand: tmio: check return value after calling platform_get_resource()
It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220426084913.4021868-3-yangyingliang@huawei.com
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/raw/tmio_nand.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mtd/nand/raw/tmio_nand.c b/drivers/mtd/nand/raw/tmio_nand.c index de8e919d0ebe..8f1a42bf199c 100644 --- a/drivers/mtd/nand/raw/tmio_nand.c +++ b/drivers/mtd/nand/raw/tmio_nand.c @@ -390,6 +390,9 @@ static int tmio_probe(struct platform_device *dev) if (data == NULL) dev_warn(&dev->dev, "NULL platform data!\n"); + if (!ccr || !fcr) + return -EINVAL; + tmio = devm_kzalloc(&dev->dev, sizeof(*tmio), GFP_KERNEL); if (!tmio) return -ENOMEM; |