diff options
| author | Fugang Duan <fugang.duan@nxp.com> | 2017-06-06 14:11:24 +0800 |
|---|---|---|
| committer | Jason Liu <jason.hui.liu@nxp.com> | 2019-02-12 10:26:45 +0800 |
| commit | 2b0e806f689b9677c12e3aa4f7f660caccfd0548 (patch) | |
| tree | 302238ad8d703c0529fbafe96c65faa24e8ed8f2 /drivers/tty/serial/fsl_lpuart.c | |
| parent | 9040d9cbad47e9c69da0dbee66bd6b83fa04d51b (diff) | |
MLK-15031-02 tty: serial: fsl_lpuart: free the rx dma buffer when port is closed
Free the rx dma buffer when the port is closed.
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Reviewed-by: Robin Gong <yibin.gong@nxp.com>
Diffstat (limited to 'drivers/tty/serial/fsl_lpuart.c')
| -rw-r--r-- | drivers/tty/serial/fsl_lpuart.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 0cebee635ca1..62acf4364a02 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -1054,6 +1054,7 @@ static void lpuart_dma_rx_free(struct uart_port *port) dma_unmap_single(sport->port.dev, sport->dma_rx_buf_bus, sport->rxdma_len, DMA_FROM_DEVICE); + devm_kfree(sport->port.dev, sport->dma_rx_buf_virt); sport->dma_rx_buf_bus = 0; sport->dma_rx_buf_virt = NULL; } @@ -1492,8 +1493,8 @@ static void lpuart_shutdown(struct uart_port *port) sport->dma_rx_in_progress = false; dmaengine_terminate_all(sport->dma_rx_chan); } - lpuart_dma_rx_free(&sport->port); del_timer_sync(&sport->lpuart_timer); + lpuart_dma_rx_free(&sport->port); } if (sport->lpuart_dma_tx_use) { @@ -1539,8 +1540,8 @@ static void lpuart32_shutdown(struct uart_port *port) sport->dma_rx_in_progress = false; dmaengine_terminate_all(sport->dma_rx_chan); } - lpuart_dma_rx_free(&sport->port); del_timer_sync(&sport->lpuart_timer); + lpuart_dma_rx_free(&sport->port); } if (sport->lpuart_dma_tx_use) { |