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>
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);
+ }
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
