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authorSebastian Huber <sebastian.huber@embedded-brains.de>2018-11-15 08:23:17 +0100
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-11-15 08:26:49 +0100
commit9f2c3ceebe191c008f004bd8dba39ebc56df51ee (patch)
tree02d60534ebde2e4b4f40d795e2f864c841550345 /rtemsbsd
parentInclude missing <sys/types.h> (diff)
downloadrtems-libbsd-9f2c3ceebe191c008f004bd8dba39ebc56df51ee.tar.bz2
Fix locking issue in epoch_watchdog()
The _Watchdog_Per_CPU_insert_ticks() assumes that interrupts are disabled.
Diffstat (limited to 'rtemsbsd')
-rw-r--r--rtemsbsd/rtems/rtems-kernel-epoch.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/rtemsbsd/rtems/rtems-kernel-epoch.c b/rtemsbsd/rtems/rtems-kernel-epoch.c
index 7d42bf32..063990b1 100644
--- a/rtemsbsd/rtems/rtems-kernel-epoch.c
+++ b/rtemsbsd/rtems/rtems-kernel-epoch.c
@@ -91,10 +91,13 @@ static void
epoch_watchdog(Watchdog_Control *wdg)
{
struct epoch_pcpu *epcpu;
+ ISR_Level level;
epcpu = __containerof(wdg, struct epoch_pcpu, wdg);
+ _ISR_Local_disable(level);
_Watchdog_Per_CPU_insert_ticks(&epcpu->wdg,
_Watchdog_Get_CPU(&epcpu->wdg), 1);
+ _ISR_Local_enable(level);
if (RTEMS_PREDICT_FALSE(epcpu->cb_count != 0)) {
rtems_interrupt_server_request_submit(&epcpu->irq_srv_req);