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-rw-r--r--drivers/tty/serial/sh-sci.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index df4f70716ba2..aabe66c99c1a 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -611,6 +611,14 @@ static void sci_stop_tx(struct uart_port *port)
ctrl &= ~SCSCR_TIE;
serial_port_out(port, SCSCR, ctrl);
+
+#ifdef CONFIG_SERIAL_SH_SCI_DMA
+ if (to_sci_port(port)->chan_tx &&
+ !dma_submit_error(to_sci_port(port)->cookie_tx)) {
+ dmaengine_terminate_async(to_sci_port(port)->chan_tx);
+ to_sci_port(port)->cookie_tx = -EINVAL;
+ }
+#endif
}
static void sci_start_rx(struct uart_port *port)