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drivers: uart_nrfx_uarte: Fix call to HW_RX_COUNTING_ENABLED()

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Since the macro references `data->async->hw_rx_counting`, it cannot
be called when `data->async` is NULL, and this could happen when the
PM_DEVICE_ACTION_RESUME action was requested for an instance that uses
the interrupt-driven API while for another instance that uses the
asynchronous API the hardware counting of bytes was configured.
Prevent this by calling the macro from a proper `if` block.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
This commit is contained in:
Andrzej Głąbek 2022-11-17 17:41:30 +01:00 • committed by Stephanos Ioannidis
commit 9628ecdc39
1 changed files with 4 additions and 3 deletions
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7
drivers/serial/uart_nrfx_uarte.c
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@ -1956,10 +1956,11 @@ static int uarte_nrfx_pm_action(const struct device *dev,
nrf_uarte_enable(uarte);
#ifdef UARTE_ANY_ASYNC
if (HW_RX_COUNTING_ENABLED(data)) {
nrfx_timer_enable(&cfg->timer);
}
if (data->async) {
if (HW_RX_COUNTING_ENABLED(data)) {
nrfx_timer_enable(&cfg->timer);
}
return 0;
}
#endif