tree bf1a0647e025bd621917647283dcedcc9c0e490f
parent 8c00496e426164cbf99fafdf2324b87e25b16238
author Holger Hans Peter Freyther <zecke@selfish.org> 1341903207 +0200
committer Holger Hans Peter Freyther <zecke@selfish.org> 1341903461 +0200

msc: Attempt to release the lchan immediately on IMSI Detach

The Nokia E71 sends a "IMSI Detach" this msc code does not immediately
send the "RR Channel Release", the E71 is impatient and sends a DISC,
the "RELEASE INDICATION" is handled by starting the channel release
procedure. OpenBSC sends a "RR Channel Release" which will never be
answered, during the early release there is no timer and the lchan will
be in "RELEASE REQUESTED" forever.

This commit removes the anchor operation and checks if the channel can
be released immediately. Regarding the channel release handling there
is already a branch that needs to be tested.