skbuff: Fix not waking applications when errors are enqueued
authorVinicius Costa Gomes <vinicius.gomes@intel.com>
Wed, 14 Mar 2018 20:32:09 +0000 (13:32 -0700)
committerDavid S. Miller <davem@davemloft.net>
Fri, 16 Mar 2018 16:35:33 +0000 (12:35 -0400)
commit6e5d58fdc9bedd0255a8781b258f10bbdc63e975
tree30744b60f5607d1b621980dea281cf6c1cb28cff
parent02a2385f37a7c6594c9d89b64c4a1451276f08eb
skbuff: Fix not waking applications when errors are enqueued

When errors are enqueued to the error queue via sock_queue_err_skb()
function, it is possible that the waiting application is not notified.

Calling 'sk->sk_data_ready()' would not notify applications that
selected only POLLERR events in poll() (for example).

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Randy E. Witt <randy.e.witt@intel.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/core/skbuff.c