From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Fri, 13 Mar 2009 22:14:50 +0000 (+0000)
Subject: ixgbe: Add a few safety nets for register writes and descriptor cleanups
X-Git-Tag: v2.6.30-rc1~662^2~218
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9891ca7cdc42354ec48c0f76256fdcc9808ffc7e;p=pandora-kernel.git

ixgbe: Add a few safety nets for register writes and descriptor cleanups

There are possible times that a driver may fail to completely initialize,
due to a buggy platform or a buggy kernel.  In those cases, we'd rather
fail gracefully instead of a panic.  Add a few safety checks to some
critical paths to try and prevent a panic in these corner-case situations.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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