diff options
Diffstat (limited to 'drivers/staging/vc04_services/interface')
| -rw-r--r-- | drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c index c65cf1e6f910..44bfa890e0e5 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c @@ -395,13 +395,21 @@ remote_event_create(wait_queue_head_t *wq, struct remote_event *event) init_waitqueue_head(wq); } +/* + * All the event waiting routines in VCHIQ used a custom semaphore + * implementation that filtered most signals. This achieved a behaviour similar + * to the "killable" family of functions. While cleaning up this code all the + * routines where switched to the "interruptible" family of functions, as the + * former was deemed unjustified and the use "killable" set all VCHIQ's + * threads in D state. + */ static inline int remote_event_wait(wait_queue_head_t *wq, struct remote_event *event) { if (!event->fired) { event->armed = 1; dsb(sy); - if (wait_event_killable(*wq, event->fired)) { + if (wait_event_interruptible(*wq, event->fired)) { event->armed = 0; return 0; } |