From: Dirk Behme <dirk.behme@xxxxxxxxxxxx> In case dmaengine_prep_slave_sg() fails, add the missing dma_unmap_sg(). Signed-off-by: Dirk Behme <dirk.behme@xxxxxxxxxxxx> Signed-off-by: Anton Bondarenko <anton_bondarenko@xxxxxxxxxx> --- drivers/tty/serial/imx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index f4b0f6b..a0bfccf 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -558,6 +558,8 @@ static void imx_dma_tx(struct imx_port *sport) desc = dmaengine_prep_slave_sg(chan, sgl, sport->dma_tx_nents, DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT); if (!desc) { + dma_unmap_sg(dev, sgl, sport->dma_tx_nents, + DMA_TO_DEVICE); dev_err(dev, "We cannot prepare for the TX slave dma!\n"); return; } @@ -947,6 +949,7 @@ static int start_rx_dma(struct imx_port *sport) desc = dmaengine_prep_slave_sg(chan, sgl, 1, DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT); if (!desc) { + dma_unmap_sg(dev, sgl, 1, DMA_FROM_DEVICE); dev_err(dev, "We cannot prepare for the RX slave dma!\n"); return -EINVAL; } -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html