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drivers: ipm: esp32: properly handle send wait parameter #94021

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Merged
merged 1 commit into from
Aug 6, 2025
Merged

drivers: ipm: esp32: properly handle send wait parameter #94021

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16 changes: 6 additions & 10 deletions drivers/ipm/ipm_esp32.c
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Original file line number Diff line number Diff line change
Expand Up @@ -121,18 +121,14 @@ static int esp32_ipm_send(const struct device *dev, int wait, uint32_t id,
while (!atomic_cas(&dev_data->control->lock,
ESP32_IPM_LOCK_FREE_VAL,
dev_data->this_core_id)) {
/* Do not wait for availability */
if (wait == 0) {
irq_unlock(key);

k_busy_wait(1);

if ((wait != -1) && (wait > 0)) {
/* lock could not be held this time, return */
wait--;
if (wait == 0) {
irq_unlock(key);

return -ETIMEDOUT;
}
return -EBUSY;
}

k_busy_wait(1);
}

/* Only the lower 16bits of id are used */
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