Messages in this thread Patch in this message | | | From | Aditya Pakki <> | Subject | [PATCH] mtd: rawnand: vf610: Fix to check for NULL pointer dereference | Date | Mon, 18 Mar 2019 18:24:34 -0500 |
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of_match_device can return NULL if there is no matching device is found. The patch avoids a potential NULL pointer dereference by checking for the return value and passing the error upstream.
Signed-off-by: Aditya Pakki <pakki001@umn.edu> --- drivers/mtd/nand/raw/vf610_nfc.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/mtd/nand/raw/vf610_nfc.c b/drivers/mtd/nand/raw/vf610_nfc.c index a662ca1970e5..946abbb275c3 100644 --- a/drivers/mtd/nand/raw/vf610_nfc.c +++ b/drivers/mtd/nand/raw/vf610_nfc.c @@ -850,6 +850,8 @@ 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) { -- 2.17.1
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