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posix: Fix _POSIX_Timer_Insert_helper() locking

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Close #2358.
This commit is contained in:
Sebastian Huber
2015-06-03 09:18:52 +02:00
parent 2764bd43d0
commit f9a2d36455
1 changed files with 9 additions and 5 deletions
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cpukit/posix/src/timerinserthelper.c
+9 -5
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@@ -37,17 +37,20 @@ bool _POSIX_Timer_Insert_helper(
void *arg
)
{
ISR_Level level;
ISR_lock_Context lock_context;
Watchdog_Header *header;
_Watchdog_Remove_ticks( timer );
_ISR_Disable( level );
header = &_Watchdog_Ticks_header;
_Watchdog_Acquire( header, &lock_context );
/*
* Check to see if the watchdog has just been inserted by a
* higher priority interrupt. If so, abandon this insert.
*/
if ( timer->state != WATCHDOG_INACTIVE ) {
_ISR_Enable( level );
_Watchdog_Release( header, &lock_context );
return false;
}
@@ -56,7 +59,8 @@ bool _POSIX_Timer_Insert_helper(
* so we can atomically initialize it as in use.
*/
_Watchdog_Initialize( timer, TSR, id, arg );
_Watchdog_Insert_ticks( timer, ticks );
_ISR_Enable( level );
timer->initial = ticks;
_Watchdog_Insert_locked( header, timer, &lock_context );
_Watchdog_Release( header, &lock_context );
return true;
}