serial: sh-sci: Stop using deprecated dmaengine_terminate_all()
authorGeert Uytterhoeven <geert+renesas@glider.be>
Fri, 6 Jul 2018 09:05:43 +0000 (11:05 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 6 Jul 2018 14:41:15 +0000 (16:41 +0200)
As of commit b36f09c3c441a6e5 ("dmaengine: Add transfer termination
synchronization support"), dmaengine_terminate_all() is deprecated.

Replace calls to dmaengine_terminate_all() in DMA release code by calls
to dmaengine_terminate_sync(), as the latter waits until all running
completion callbacks have finished.

Replace calls to dmaengine_terminate_all() in DMA failure paths by calls
to dmaengine_terminate_async(), as these are usually done in atomic
context.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/sh-sci.c

index f3432cca3fdcb9d3c449920835afe4ea4edddb91..6eb65160e0150f278d624f3541ddf0b05f87ca7d 100644 (file)
@@ -1220,7 +1220,7 @@ static void sci_rx_dma_release(struct sci_port *s)
 
        s->chan_rx_saved = s->chan_rx = NULL;
        s->cookie_rx[0] = s->cookie_rx[1] = -EINVAL;
-       dmaengine_terminate_all(chan);
+       dmaengine_terminate_sync(chan);
        dma_free_coherent(chan->device->dev, s->buf_len_rx * 2, s->rx_buf[0],
                          sg_dma_address(&s->sg_rx[0]));
        dma_release_channel(chan);
@@ -1296,7 +1296,7 @@ static void sci_tx_dma_release(struct sci_port *s)
        cancel_work_sync(&s->work_tx);
        s->chan_tx_saved = s->chan_tx = NULL;
        s->cookie_tx = -EINVAL;
-       dmaengine_terminate_all(chan);
+       dmaengine_terminate_sync(chan);
        dma_unmap_single(chan->device->dev, s->tx_dma_addr, UART_XMIT_SIZE,
                         DMA_TO_DEVICE);
        dma_release_channel(chan);
@@ -1334,7 +1334,7 @@ static void sci_submit_rx(struct sci_port *s)
 
 fail:
        if (i)
-               dmaengine_terminate_all(chan);
+               dmaengine_terminate_async(chan);
        for (i = 0; i < 2; i++)
                s->cookie_rx[i] = -EINVAL;
        s->active_rx = -EINVAL;
@@ -1452,7 +1452,7 @@ static enum hrtimer_restart rx_timer_fn(struct hrtimer *t)
        }
 
        /* Handle incomplete DMA receive */
-       dmaengine_terminate_all(s->chan_rx);
+       dmaengine_terminate_async(s->chan_rx);
        read = sg_dma_len(&s->sg_rx[active]) - state.residue;
 
        if (read) {