On 14-09-21, 13:58, Harini Katakam wrote:
> From: Shravya Kumbham <shravya.kumbham@xxxxxxxxxx>
>
> Add condition to check the return value of dma_async_device_register
> and pm_runtime_get_sync functions.
>
> Addresses-Coverity: Event check_return.
> Signed-off-by: Shravya Kumbham <shravya.kumbham@xxxxxxxxxx>
sob missing
> Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@xxxxxxxxxx>
> ---
> drivers/dma/xilinx/zynqmp_dma.c | 12 ++++++++++--
> 1 file changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/dma/xilinx/zynqmp_dma.c b/drivers/dma/xilinx/zynqmp_dma.c
> index d28b9ffb4309..588460e56ab8 100644
> --- a/drivers/dma/xilinx/zynqmp_dma.c
> +++ b/drivers/dma/xilinx/zynqmp_dma.c
> @@ -1080,7 +1080,11 @@ static int zynqmp_dma_probe(struct platform_device *pdev)
> pm_runtime_set_autosuspend_delay(zdev->dev, ZDMA_PM_TIMEOUT);
> pm_runtime_use_autosuspend(zdev->dev);
> pm_runtime_enable(zdev->dev);
> - pm_runtime_get_sync(zdev->dev);
> + ret = pm_runtime_get_sync(zdev->dev);
> + if (ret < 0) {
> + dev_err(zdev->dev, "pm_runtime_get_sync() failed\n");
> + pm_runtime_disable(zdev->dev);
disable is okay but it wont fix the count, you should call put and then
disable if required
> + }
> if (!pm_runtime_enabled(zdev->dev)) {
> ret = zynqmp_dma_runtime_resume(zdev->dev);
> if (ret)
> @@ -1096,7 +1100,11 @@ static int zynqmp_dma_probe(struct platform_device *pdev)
> p->dst_addr_widths = BIT(zdev->chan->bus_width / 8);
> p->src_addr_widths = BIT(zdev->chan->bus_width / 8);
>
> - dma_async_device_register(&zdev->common);
> + ret = dma_async_device_register(&zdev->common);
> + if (ret) {
> + dev_err(zdev->dev, "failed to register the dma device\n");
> + goto free_chan_resources;
> + }
>
> ret = of_dma_controller_register(pdev->dev.of_node,
> of_zynqmp_dma_xlate, zdev);
> --
> 2.17.1
--
~Vinod
