tree 9133b90a3f42347842190938cd27fa7ce6729377
parent b99a4d53a74ac25eb4b930eef6c745579149c571
author Vlad Yasevich <vladislav.yasevich@hp.com> 1272681669 -0400
committer Vlad Yasevich <vladislav.yasevich@hp.com> 1272681669 -0400

sctp: Make sure we always return valid retransmit path

commit 4951feda0c60d1ef681f1a270afdd617924ab041
    sctp: Do no select unconfirmed transports for retransmissions

added code to make sure that we do not select unconfirmed paths
for data transmission.  This caused a problem when there are only
2 paths, 1 unconfirmed and 1 unreachable.  In that case, the next
retransmit path returned is NULL and that causes a kernel crash.

The solution is to only change retransmit paths if we found one to use.

Reported-by: Frank Schuster <frank.schuster01@web.de>
Signed-off-b: Vlad Yasevich <vladislav.yasevich@hp.com>