Make sure to drop the reference taken when looking up the UDMA platform device.
Note that holding a reference to a platform device does not prevent its driver data from going away so there is no point in keeping the reference after the lookup helper returns.
Fixes: d70241913413 ("dmaengine: ti: k3-udma: Add glue layer for non DMAengine users") Fixes: 1438cde8fe9c ("dmaengine: ti: k3-udma: add missing put_device() call in of_xudma_dev_get()") Cc: stable@vger.kernel.org # 5.6: 1438cde8fe9c Cc: Grygorii Strashko grygorii.strashko@ti.com Cc: Yu Kuai yukuai3@huawei.com Signed-off-by: Johan Hovold johan@kernel.org --- drivers/dma/ti/k3-udma-private.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/ti/k3-udma-private.c b/drivers/dma/ti/k3-udma-private.c index 05228bf00033..624360423ef1 100644 --- a/drivers/dma/ti/k3-udma-private.c +++ b/drivers/dma/ti/k3-udma-private.c @@ -42,9 +42,9 @@ struct udma_dev *of_xudma_dev_get(struct device_node *np, const char *property) }
ud = platform_get_drvdata(pdev); + put_device(&pdev->dev); if (!ud) { pr_debug("UDMA has not been probed\n"); - put_device(&pdev->dev); return ERR_PTR(-EPROBE_DEFER); }