[PATCH 2/8] igb: fix null pointer dereference seen with fiber NICs

[Jeff Kirsher <jeffrey.t.kirsher@intel.com>]

From: Alexander Duyck <alexander.h.duyck@intel.com>

With a fiber or serdes NIC installed the driver was causing a null pointer
dereference on driver unload.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---

 drivers/net/igb/igb_main.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index f23a048..cfed2b0 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1372,7 +1372,8 @@ static void __devexit igb_remove(struct pci_dev *pdev)
 
 	unregister_netdev(netdev);
 
-	if (!igb_check_reset_block(&adapter->hw))
+	if (adapter->hw.phy.ops.reset_phy &&
+	    !igb_check_reset_block(&adapter->hw))
 		adapter->hw.phy.ops.reset_phy(&adapter->hw);
 
 	igb_remove_device(&adapter->hw);