Correct to check the right rx dma cookie status in spit of it works because only one cookie is running in the current sdma. But it will not once sdma driver support multi cookies running based on virt-dma. Signed-off-by: Robin Gong <yibin.gong@xxxxxxx> --- drivers/tty/serial/imx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index c2fc6be..b83bc2c 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1051,7 +1051,7 @@ static void imx_uart_dma_rx_callback(void *data) unsigned int r_bytes; unsigned int bd_size; - status = dmaengine_tx_status(chan, (dma_cookie_t)0, &state); + status = dmaengine_tx_status(chan, sport->rx_cookie, &state); if (status == DMA_ERROR) { imx_uart_clear_rx_errors(sport); -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html