tree f35b38f084453e2d7260d4a7a8d13f2a01641664
parent 9652041da18a1a1d9a0b7ebd9eef16bd712be38a
author Eric Dumazet <eric.dumazet@gmail.com> 1255063420 +0000
committer David S. Miller <davem@davemloft.net> 1255429014 -0700

udp: Fix udp_poll() and ioctl()

udp_poll() can in some circumstances drop frames with incorrect checksums.

Problem is we now have to lock the socket while dropping frames, or risk
sk_forward corruption.

This bug is present since commit 95766fff6b9a78d1
([UDP]: Add memory accounting.)

While we are at it, we can correct ioctl(SIOCINQ) to also drop bad frames.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>