diff options
| author |   Peter Hurley <peter@hurleysoftware.com> | 2011-08-05 10:44:21 -0400 |
|---|---|---|
| committer |   Gustavo F. Padovan <padovan@profusion.mobi> | 2011-08-11 19:50:27 -0300 |
| commit | 7176522cdca1f0b78a1434b41761f0334511822a (patch) | |
| tree | 58ec3c3fc712536e898bd2d7780361e8a492f22a /net/bluetooth/cmtp/capi.c | |
| parent | Bluetooth: bnep: Fix deadlock in session deletion (diff) | |
| download | linux-dev-7176522cdca1f0b78a1434b41761f0334511822a.tar.xz linux-dev-7176522cdca1f0b78a1434b41761f0334511822a.zip | |
Bluetooth: cmtp: Fix deadlock in session deletion
Commit fada4ac339 introduced the usage of kthread API.
kthread_stop is a blocking function which returns only when
the thread exits. In this case, the thread can't exit because it's
waiting for the write lock, which is being held by cmtp_del_connection()
which is waiting for the thread to exit -- deadlock.
Revert cmtp_reset_ctr to its original behavior: non-blocking signalling
for the session to terminate.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Diffstat (limited to 'net/bluetooth/cmtp/capi.c')
| -rw-r--r-- | net/bluetooth/cmtp/capi.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/bluetooth/cmtp/capi.c b/net/bluetooth/cmtp/capi.c index 040f67b12978..50f0d135eb8f 100644 --- a/net/bluetooth/cmtp/capi.c +++ b/net/bluetooth/cmtp/capi.c @@ -386,7 +386,8 @@ static void cmtp_reset_ctr(struct capi_ctr *ctrl) capi_ctr_down(ctrl); - kthread_stop(session->task); + atomic_inc(&session->terminate); + wake_up_process(session->task); } static void cmtp_register_appl(struct capi_ctr *ctrl, __u16 appl, capi_register_params *rp) |