of_match_device could return NULL, and so can cause a NULL pointer dereference later.
Signed-off-by: Shailendra Verma <[email protected]> --- drivers/nvmem/imx-ocotp.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c index ac27b9b..150a117 100644 --- a/drivers/nvmem/imx-ocotp.c +++ b/drivers/nvmem/imx-ocotp.c @@ -99,6 +99,11 @@ static int imx_ocotp_probe(struct platform_device *pdev) return PTR_ERR(priv->clk); of_id = of_match_device(imx_ocotp_dt_ids, dev); + if (!of_id) { + dev_err(dev, "Error: No device match found\n"); + return -ENODEV; + } + priv->nregs = (unsigned long)of_id->data; imx_ocotp_nvmem_config.size = 4 * priv->nregs; imx_ocotp_nvmem_config.dev = dev; -- 1.7.9.5
