From: Richard Cochran <richardcochran@gmail.com>
Date: Tue, 23 Apr 2013 01:56:34 +0000 (+0000)
Subject: e1000e: fix numeric overflow in phc settime method
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~65^2~11^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=73e3dd6b45c4c870fc2641eb04c24e3f12dab1e0;p=pandora-kernel.git

e1000e: fix numeric overflow in phc settime method

The PTP Hardware Clock settime function in the e1000e driver
computes nanoseconds from a struct timespec. The code converts the
seconds field .tv_sec by multiplying it with NSEC_PER_SEC. However,
both operands are of type long, resulting in an unintended overflow.
The patch fixes the issue by using the helper function from time.h.

CC: stable <stable@vger.kernel.org>
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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