Add NULL check before dereferencing pointer of_id in order to avoid a potential NULL pointer dereference.
Addresses-Coverity-ID: 1408829 Cc: Lee Jones <[email protected]> Cc: Charles Keepax <[email protected]> Signed-off-by: Gustavo A. R. Silva <[email protected]> --- Changes in v2: Update error log and return value. drivers/mfd/wm831x-i2c.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mfd/wm831x-i2c.c b/drivers/mfd/wm831x-i2c.c index 781af06..bed66d8 100644 --- a/drivers/mfd/wm831x-i2c.c +++ b/drivers/mfd/wm831x-i2c.c @@ -37,6 +37,10 @@ static int wm831x_i2c_probe(struct i2c_client *i2c, if (i2c->dev.of_node) { of_id = of_match_device(wm831x_of_match, &i2c->dev); + if (!of_id) { + dev_err(&i2c->dev, "Failed to match device\n"); + return -ENODEV; + } type = (enum wm831x_parent)of_id->data; } else { type = (enum wm831x_parent)id->driver_data; -- 2.5.0
