From fb7f1bf8d05e4f339450f3f74bd91c72ce980748 Mon Sep 17 00:00:00 2001 From: Robin Gong Date: Wed, 20 Jun 2018 00:56:58 +0800 Subject: [PATCH] tty: serial: imx: correct dma cookie status MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Sascha Hauer Acked-by: Uwe Kleine-König Tested-by: Lucas Stach Signed-off-by: Greg Kroah-Hartman --- 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 3f2b33ecf30a..239c0fa2e981 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1052,7 +1052,7 @@ 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); -- 2.30.2