From: Tony Battersby <tonyb@cybernetics.com>
Date: Tue, 31 Mar 2009 22:24:14 +0000 (-0700)
Subject: epoll: remember the event if epoll_wait returns -EFAULT
X-Git-Tag: v2.6.30-rc1~526
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d0305882825784e74f68a56eee6c3a812a99f235;p=pandora-kernel.git

epoll: remember the event if epoll_wait returns -EFAULT

If epoll_wait returns -EFAULT, the event that was being returned when the
fault was encountered will be forgotten.  This is not a big deal since
EFAULT will happen only if a buggy userspace program passes in a bad
address, in which case what happens later usually doesn't matter.
However, it is easy to remember the event for later, and this patch makes
a simple change to do that.

Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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