i2c-pxa2xx: return proper error code in ce4100_i2c_probe error paths

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

drivers/i2c/busses/i2c-pxa-pci.c

@@ -109,12 +109,15 @@ static int __devinit ce4100_i2c_probe(struct pci_dev *dev,
 		return -EINVAL;
 	}
 	sds = kzalloc(sizeof(*sds), GFP_KERNEL);
-	if (!sds)
+	if (!sds) {
+		ret = -ENOMEM;
 		goto err_mem;
+	}
 
 	for (i = 0; i < ARRAY_SIZE(sds->pdev); i++) {
 		sds->pdev[i] = add_i2c_device(dev, i);
 		if (IS_ERR(sds->pdev[i])) {
+			ret = PTR_ERR(sds->pdev[i]);
 			while (--i >= 0)
 				platform_device_unregister(sds->pdev[i]);
 			goto err_dev_add;