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[v4,1/7] tty: serial: imx: correct dma cookie status

Message ID 1528983337-2726-2-git-send-email-yibin.gong@nxp.com (mailing list archive)
State Not Applicable
Headers show

Commit Message

Robin Gong June 14, 2018, 1:35 p.m. UTC 
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@nxp.com>
---
 drivers/tty/serial/imx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

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);