This bug was detected with the libio-epoll-perl debian package where the
test case IO-Ppoll-compat.t failed.
Signed-off-by: Helge Deller <deller@gmx.de>
CC: stable@kernel.org   # 3.0+

(cherry picked from commit ab3e55b1)
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>