From: Nandor Han <nandor.han@xxxxxx>
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 <nandor.han@xxxxxx>
Signed-off-by: Romain Perier <romain.perier@xxxxxxxxxxxxx>
---
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
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