From 6f0ce4dfc5a35bcb21f26d5347f4797fdde52810 Mon Sep 17 00:00:00 2001 From: Aditya Pakki Date: Mon, 18 Mar 2019 18:24:34 -0500 Subject: [PATCH] mtd: rawnand: vf610: Avoid a potential NULL pointer dereference of_match_device can return NULL if there is no matching device. Avoid a potential NULL pointer dereference by checking for the return value and passing the error upstream. Signed-off-by: Aditya Pakki Signed-off-by: Miquel Raynal --- drivers/mtd/nand/raw/vf610_nfc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mtd/nand/raw/vf610_nfc.c b/drivers/mtd/nand/raw/vf610_nfc.c index a662ca1970e5..6d43ddb3332f 100644 --- a/drivers/mtd/nand/raw/vf610_nfc.c +++ b/drivers/mtd/nand/raw/vf610_nfc.c @@ -850,6 +850,9 @@ static int vf610_nfc_probe(struct platform_device *pdev) } of_id = of_match_device(vf610_nfc_dt_ids, &pdev->dev); + if (!of_id) + return -ENODEV; + nfc->variant = (enum vf610_nfc_variant)of_id->data; for_each_available_child_of_node(nfc->dev->of_node, child) { -- 2.30.2