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shell: uart: Fix compilation warning

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Use ARG_UNUSED() to fix compilation warning unused-but-set-variable.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
This commit is contained in:
Andrei Emeltchenko 2022-06-06 17:45:11 +03:00 • committed by Carles Cufí
commit a9b3c936e2
1 changed files with 3 additions and 1 deletions
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4
subsys/shell/backends/shell_uart.c
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@ -124,17 +124,19 @@ static void uart_tx_handle(const struct device *dev,
const struct shell_uart *sh_uart) const struct shell_uart *sh_uart)
{ {
uint32_t len; uint32_t len;
int err;
const uint8_t *data; const uint8_t *data;
len = ring_buf_get_claim(sh_uart->tx_ringbuf, (uint8_t **)&data, len = ring_buf_get_claim(sh_uart->tx_ringbuf, (uint8_t **)&data,
sh_uart->tx_ringbuf->size); sh_uart->tx_ringbuf->size);
if (len) { if (len) {
int err;
/* Wait for DTR signal before sending anything to output. */ /* Wait for DTR signal before sending anything to output. */
uart_dtr_wait(dev); uart_dtr_wait(dev);
len = uart_fifo_fill(dev, data, len); len = uart_fifo_fill(dev, data, len);
err = ring_buf_get_finish(sh_uart->tx_ringbuf, len); err = ring_buf_get_finish(sh_uart->tx_ringbuf, len);
__ASSERT_NO_MSG(err == 0); __ASSERT_NO_MSG(err == 0);
ARG_UNUSED(err);
} else { } else {
uart_irq_tx_disable(dev); uart_irq_tx_disable(dev);
sh_uart->ctrl_blk->tx_busy = 0; sh_uart->ctrl_blk->tx_busy = 0;