tree bc72ee5256301d591616db2270c45929be2d58d6
parent 36e78a463b26c9b8017a2e11dcd6c4b8e34b4161
author Jon Paul Maloy <jon.maloy@ericsson.com> 1437080063 -0400
committer David S. Miller <davem@davemloft.net> 1437450075 -0700

tipc: change sk_buffer handling in tipc_link_xmit()

When the function tipc_link_xmit() is given a buffer list for
transmission, it currently consumes the list both when transmission
is successful and when it fails, except for the special case when
it encounters link congestion.

This behavior is inconsistent, and needs to be corrected if we want
to avoid problems in later commits in this series.

In this commit, we change this to let the function consume the list
only when transmission is successful, and leave the list with the
sender in all other cases. We also modifiy the socket code so that
it adapts to this change, i.e., purges the list when a non-congestion
error code is returned.

Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>