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drivers: uart: stm32 async uart driver should free next buffer

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When disabling async rx, the next buffer is not free-ed by
the stm32 uart driver.

Signed-off-by: Wouter Cappelle <wouter.cappelle@crodeon.com>
This commit is contained in:
Wouter Cappelle 2022-10-07 14:49:16 +02:00 • committed by Carles Cufí
commit 984b612c48
1 changed files with 8 additions and 0 deletions
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8
drivers/serial/uart_stm32.c
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@ -1129,6 +1129,14 @@ static int uart_stm32_async_rx_disable(const struct device *dev)
dma_stop(data->dma_rx.dma_dev, data->dma_rx.dma_channel);
if (data->rx_next_buffer) {
struct uart_event rx_next_buf_release_evt = {
.type = UART_RX_BUF_RELEASED,
.data.rx_buf.buf = data->rx_next_buffer,
};
async_user_callback(data, &rx_next_buf_release_evt);
}
data->rx_next_buffer = NULL;
data->rx_next_buffer_len = 0;