The DMA engines on some systems require that the dma_length is set when using scatter gather lists.
Signed-off-by: Andrew Jackson <[email protected]> --- drivers/tty/serial/amba-pl011.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index d8d067a..7c5e263 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -246,6 +246,7 @@ static int pl011_sgbuf_init(struct dma_chan *chan, struct pl011_sgbuf *sg, sg_set_page(&sg->sg, phys_to_page(dma_addr), PL011_DMA_BUFFER_SIZE, offset_in_page(dma_addr)); sg_dma_address(&sg->sg) = dma_addr; + sg_dma_len(&sg->sg) = PL011_DMA_BUFFER_SIZE; return 0; } -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
