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Merge "dsp-kernel: Handle race-condition in dsp signal"

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qctecmdr
2024-03-07 05:19:46 -08:00
committed by Gerrit - the friendly Code Review server
parent 4e20907ac2 1d05790e68
commit e797e0d37f
1 changed files with 5 additions and 0 deletions
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5
dsp/adsprpc.c
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@@ -7050,6 +7050,11 @@ int fastrpc_dspsignal_wait(struct fastrpc_file *fl,
if (s->state != DSPSIGNAL_STATE_PENDING) { if (s->state != DSPSIGNAL_STATE_PENDING) {
if ((s->state == DSPSIGNAL_STATE_CANCELED) || (s->state == DSPSIGNAL_STATE_UNUSED)) if ((s->state == DSPSIGNAL_STATE_CANCELED) || (s->state == DSPSIGNAL_STATE_UNUSED))
err = -EINTR; err = -EINTR;
if (s->state == DSPSIGNAL_STATE_SIGNALED) {
/* Signal already received from DSP. Reset signal state and return */
s->state = DSPSIGNAL_STATE_PENDING;
reinit_completion(&s->comp);
}
spin_unlock_irqrestore(&fl->dspsignals_lock, irq_flags); spin_unlock_irqrestore(&fl->dspsignals_lock, irq_flags);
DSPSIGNAL_VERBOSE("Signal %u in state %u, complete wait immediately", DSPSIGNAL_VERBOSE("Signal %u in state %u, complete wait immediately",
signal_id, s->state); signal_id, s->state);