bugfix/ets_timer.c: race condition while disarming
If `sdk_ets_timer_arm_ms_us` is called right after `vPortExitCritical` inside `sdk_ets_timer_disarm` on line 247 (by an ISR for example, which was my case), execution will loop forever on line 196, since `timer->next!=ETS_TIMER_NOT_ARMED`, which was supposed to be changed in line 248. By delaying the IRS or context switch until `sdk_ets_timer_disarm` the problem is fixed.
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@ -244,9 +244,9 @@ void sdk_ets_timer_disarm(ets_timer_t *timer)
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prev = curr;
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curr = curr->next;
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}
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vPortExitCritical();
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timer->next = ETS_TIMER_NOT_ARMED;
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timer->period_ticks = 0;
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vPortExitCritical();
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}
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/**
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