tree aeb1403dff45df771e0c83bad4e7d8c6b8164e50
parent 2fb02a26bda1cbc3553164a8358c303d936255c5
author Alexander Duyck <alexander.h.duyck@intel.com> 1252916593 +0000
committer David S. Miller <davem@davemloft.net> 1252973034 -0700

igb: do not allow phy sw reset code to make calls to null pointers

In the case of fiber and serdes adapters we were seeing issues with ethtool
-t causing kernel panics due to null function pointers.  To prevent this we
need to exit out of the phy reset code in the event that we do not have a
valid phy.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>