of_match_device could return NULL, and so can cause a NULL pointer dereference later.
Signed-off-by: Shailendra Verma <[email protected]> --- drivers/tty/serial/max310x.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c index 8a3e926..a94d147 100644 --- a/drivers/tty/serial/max310x.c +++ b/drivers/tty/serial/max310x.c @@ -1323,6 +1323,10 @@ static int max310x_spi_probe(struct spi_device *spi) if (spi->dev.of_node) { const struct of_device_id *of_id = of_match_device(max310x_dt_ids, &spi->dev); + if (!of_id) { + dev_err(&spi->dev, "Error: No device match found\n"); + return -ENODEV; + } devtype = (struct max310x_devtype *)of_id->data; } else { -- 1.7.9.5
