cxgb4: Fix error handling path in 'init_one()'

Commit baf50868 ("cxgb4: restructure VF mgmt code") has reordered
some code but an error handling label has not been updated accordingly.
So fix it and free 'adapter' if 't4_wait_dev_ready()' fails.

Fixes: baf50868 ("cxgb4: restructure VF mgmt code")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c

@@ -5166,7 +5166,7 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	adapter->regs = regs;
 	err = t4_wait_dev_ready(regs);
 	if (err < 0)
-		goto out_unmap_bar0;
+		goto out_free_adapter;
 
 	/* We control everything through one PF */
 	whoami = readl(regs + PL_WHOAMI_A);