diff --git a/drivers/i2c/i2c-cdns.c b/drivers/i2c/i2c-cdns.c
index c1672ca..1a89207 100644
--- a/drivers/i2c/i2c-cdns.c
+++ b/drivers/i2c/i2c-cdns.c
@@ -479,9 +479,9 @@
 	struct clk clk;
 	int ret;
 
-	i2c_bus->regs = (struct cdns_i2c_regs *)dev_read_addr(dev);
+	i2c_bus->regs = dev_read_addr_ptr(dev);
 	if (!i2c_bus->regs)
-		return -ENOMEM;
+		return -EINVAL;
 
 	if (pdata)
 		i2c_bus->quirks = pdata->quirks;