shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-01 08:46:36 +09:00
Code Issues Packages Projects Releases Wiki Activity

greybus: timesync: Bugfix ping should not result in -EAGAIN

Browse Source 
gb_timesync_schedule_synchronous() is currently making a synchronous
FrameTime synchronization happen. It does a wait_event_interruptible() and
then goes to check the status of the state-machine. Occasionally the state
indicates PING - which is a completely valid state and should result in a
result code of 0 not -EAGAIN. This patch fixes by making
__gb_timesync_get_status() return 0 instead of -EAGAIN for the PING state.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: David Lin <dtwlin@google.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Bryan O'Donoghue
2016-07-19 01:56:49 +01:00
committed by Greg Kroah-Hartman
parent 1455db9e1b
commit 52764bd8aa
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/staging/greybus/timesync.c
View File

@@ -462,9 +462,9 @@ static int __gb_timesync_get_status(struct gb_timesync_svc *timesync_svc)
case GB_TIMESYNC_STATE_INIT:
case GB_TIMESYNC_STATE_WAIT_SVC:
case GB_TIMESYNC_STATE_AUTHORITATIVE:
case GB_TIMESYNC_STATE_PING:
ret = -EAGAIN;
break;
case GB_TIMESYNC_STATE_PING:
case GB_TIMESYNC_STATE_ACTIVE:
ret = 0;
break;