be2net: Check for POST state in suspend-resume sequence

In suspend-resume sequence, the OS could attempt to initialize the controller
before it is ready, check for POST state before going ahead.

Signed-off-by: Sarveshwar Bandi <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/ethernet/emulex/benet/be_main.c

···
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
 
+	status = be_fw_wait_ready(adapter);
+	if (status)
+		return status;
+
 	/* tell fw we're ready to fire cmds */
 	status = be_cmd_fw_init(adapter);
 	if (status)