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Revert "net/ieee802154: reject zero-sized raw_sendmsg()"

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[ Upstream commit 2eb2756f6c ]

This reverts commit 3a4d061c69.

There is a v2 which does return zero if zero length is given.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20221005014750.3685555-1-aahringo@redhat.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Alexander Aring 2022-10-04 21:47:49 -04:00 committed by Greg Kroah-Hartman
parent dc54ff9fc4
commit a96336a5f2
1 changed files with 0 additions and 3 deletions
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3
net/ieee802154/socket.c
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@ -252,9 +252,6 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
return -EOPNOTSUPP; return -EOPNOTSUPP;
} }
if (!size)
return -EINVAL;
lock_sock(sk); lock_sock(sk);
if (!sk->sk_bound_dev_if) if (!sk->sk_bound_dev_if)
dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154); dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154);