diff --git a/drivers/misc/ti_fpc202.c b/drivers/misc/ti_fpc202.c
index 8eb2b5ac9850..578feefb77f1 100644
--- a/drivers/misc/ti_fpc202.c
+++ b/drivers/misc/ti_fpc202.c
@@ -366,7 +366,7 @@ static int fpc202_probe(struct i2c_client *client)
 			goto unregister_chans;
 		}
 
-		if (port_id > FPC202_NUM_PORTS) {
+		if (port_id >= FPC202_NUM_PORTS) {
 			dev_err(dev, "port ID %d is out of range!\n", port_id);
 			ret = -EINVAL;
 			goto unregister_chans;