android/android_kernel_samsung_sm8650-modules
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qcacmn: Check if the scheduler thread is already flushed

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During the module initialization the scheduler thread and the
init thread run in parallel if there is a failure in the error
path, the scheduler thread is not aware and still sending
the messages to firmware resulting in system instability.
So, Disable the scheduler as soon as there is an error in the init path
and the same scheduler thread in the normal existing error path.

If the scheduler_disable  is called multiple times the infinite wait
for result will get the init thread struck.

Change-Id: I39782bc88d49dac2e2138c235c4666ea4f4f2faf
CRs-Fixed: 2754023
This commit is contained in:
Arun Kumar Khandavalli 2020-08-11 22:40:45 +05:30 committed by snandini
parent 279435cff4
commit 45a38684b0
1 changed files with 5 additions and 0 deletions
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5
scheduler/src/scheduler_api.c
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@ -33,6 +33,11 @@ QDF_STATUS scheduler_disable(void)
if (!sched_ctx)
return QDF_STATUS_E_INVAL;
if (!sched_ctx->sch_thread) {
sched_debug("Scheduler already disabled");
return QDF_STATUS_SUCCESS;
}
/* send shutdown signal to scheduler thread */
qdf_atomic_set_bit(MC_SHUTDOWN_EVENT_MASK, &sched_ctx->sch_event_flag);
qdf_atomic_set_bit(MC_POST_EVENT_MASK, &sched_ctx->sch_event_flag);