Add null check before dereferencing pointer of_id in order to avoid a potential NULL pointer dereference.
Addresses-Coverity-ID: 1408830 Cc: Charles Keepax <[email protected]> Signed-off-by: Gustavo A. R. Silva <[email protected]> --- drivers/mfd/wm831x-spi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mfd/wm831x-spi.c b/drivers/mfd/wm831x-spi.c index c332e28..7b227c9 100644 --- a/drivers/mfd/wm831x-spi.c +++ b/drivers/mfd/wm831x-spi.c @@ -34,6 +34,10 @@ static int wm831x_spi_probe(struct spi_device *spi) if (spi->dev.of_node) { of_id = of_match_device(wm831x_of_match, &spi->dev); + if (!of_id) { + dev_err(&spi->dev, "Failed to find matching id\n"); + return -EINVAL; + } type = (enum wm831x_parent)of_id->data; } else { type = (enum wm831x_parent)id->driver_data; -- 2.5.0
