i2c: amd-mp2-pci: Fix Oops in amd_mp2_pci_init() error handling

The problem is that we dereference "privdata->pci_dev" when we print
the error messages in amd_mp2_pci_init():

	dev_err(ndev_dev(privdata), "Failed to enable MP2 PCI device\n");
		^^^^^^^^^^^^^^^^^

Fixes: 529766e0 ("i2c: Add drivers for the AMD PCIe MP2 I2C controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org

drivers/i2c/busses/i2c-amd-mp2-pci.c

@@ -349,12 +349,12 @@ static int amd_mp2_pci_probe(struct pci_dev *pci_dev,
 	if (!privdata)
 		return -ENOMEM;
 
+	privdata->pci_dev = pci_dev;
 	rc = amd_mp2_pci_init(privdata, pci_dev);
 	if (rc)
 		return rc;
 
 	mutex_init(&privdata->c2p_lock);
-	privdata->pci_dev = pci_dev;
 
 	pm_runtime_set_autosuspend_delay(&pci_dev->dev, 1000);
 	pm_runtime_use_autosuspend(&pci_dev->dev);