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| author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2015-12-04 15:21:19 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-13 06:42:31 +0100 |
| commit | d09959e7529451a1c302197fb1396ed5b835f6d3 (patch) | |
| tree | 51ba48440151d1d1acb2eb1d8c7f21903f9c8995 | |
| parent | n_tty: Fix poll() after buffer-limited eof push read (diff) | |
| download | linux-d09959e7529451a1c302197fb1396ed5b835f6d3.tar.xz linux-d09959e7529451a1c302197fb1396ed5b835f6d3.zip | |
serial: sh-sci: Fix length of scatterlist
This patch fixes an issue that the "length" of scatterlist should be
set using sg_dma_len(). Otherwise, a dmaengine driver cannot work
correctly if CONFIG_NEED_SG_DMA_LENGTH=y.
Fixes: 7b39d90184 (serial: sh-sci: Fix NULL pointer dereference if HIGHMEM is enabled)
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serial/sh-sci.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 960e50a97558..51c7507b0444 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -1437,7 +1437,7 @@ static void sci_request_dma(struct uart_port *port) sg_init_table(sg, 1); s->rx_buf[i] = buf; sg_dma_address(sg) = dma; - sg->length = s->buf_len_rx; + sg_dma_len(sg) = s->buf_len_rx; buf += s->buf_len_rx; dma += s->buf_len_rx; |