[PATCH] dmaengine: sprd-dma: handle runtime PM get failure

From: jiawen <[email protected]>

Route failed runtime-PM acquisition through its existing cleanup path.

Release and disable runtime PM before continuing with the hardware
teardown, so an unsuccessful pm_runtime_get_sync() does not leave
runtime PM enabled.

Signed-off-by: jiawen <[email protected]>
---
diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c
--- a/drivers/dma/sprd-dma.c
+++ b/drivers/dma/sprd-dma.c
@@ -1212,7 +1212,7 @@
 
 	ret = pm_runtime_get_sync(&pdev->dev);
 	if (ret < 0)
-		goto err_rpm;
+		goto err_register;
 
 	ret = dma_async_device_register(&sdev->dma_dev);
 	if (ret < 0) {
@@ -1234,7 +1234,6 @@
 err_register:
 	pm_runtime_put_noidle(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
-err_rpm:
 	sprd_dma_disable(sdev);
 	return ret;
 }