bnx2x: Move to D0 before clearing MSI/MSI-X configuration.

Move to D0 before clearing MSI/MSI-X configuration. Otherwise MSI/MSI-X
won't be cleared.

Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bnx2x/bnx2x_main.c b/drivers/net/bnx2x/bnx2x_main.c
index b5558bc..84e1af4 100644
--- a/drivers/net/bnx2x/bnx2x_main.c
+++ b/drivers/net/bnx2x/bnx2x_main.c
@@ -9508,9 +9508,15 @@
 	/* Delete all NAPI objects */
 	bnx2x_del_all_napi(bp);
 
+	/* Power on: we can't let PCI layer write to us while we are in D3 */
+	bnx2x_set_power_state(bp, PCI_D0);
+
 	/* Disable MSI/MSI-X */
 	bnx2x_disable_msi(bp);
 
+	/* Power off */
+	bnx2x_set_power_state(bp, PCI_D3hot);
+
 	/* Make sure RESET task is not scheduled before continuing */
 	cancel_delayed_work_sync(&bp->reset_task);