tree a4dcfea753279e1f8f4e7cc8256a8f5c195341ce
parent abff55cee1039b5a3b96f7a5eb6e65b9f247a274
author Tony Battersby <tonyb@cybernetics.com> 1238538254 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1238601559 -0700

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>