sgsn: Cancel pending timer in sgsn_mm_ctx_free

Currently the timer is not stopped before the MM context is freed
which can lead to failure if sgsn_mm_ctx_free is called while timer
protected procedures are active.

This patch add code to cancel the timer if necessary from within
sgsn_mm_ctx_free.

Ticket: OW#1322
Sponsored-by: On-Waves ehf
1 file changed
tree: 5afbdc8089572335e1fbb57d12593b95c092019f
  1. debian/
  2. hlrsync/
  3. linux-kernel/
  4. openbsc/
  5. wireshark/
  6. README