From: Nandor Han <[email protected]> Initialize both dma_is_{rx|tx}ing variables when DMA is enabled to avoid checking uninitialized variables if port shutdown is requested before DMA channels get a chance to start.
Signed-off-by: Nandor Han <[email protected]> Signed-off-by: Romain Perier <[email protected]> --- 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 188063d..81fb413 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1225,6 +1225,9 @@ static void imx_enable_dma(struct imx_port *sport) imx_setup_ufcr(sport, TXTL_DMA, RXTL_DMA); + sport->dma_is_rxing = 0; + sport->dma_is_txing = 0; + sport->dma_is_enabled = 1; } -- 1.8.3.1
