On 03/06/16 09:58, Russell King wrote:
Convert DT component matching to use component_match_add_release().

Signed-off-by: Russell King <rmk+ker...@armlinux.org.uk>
---

Reviewed-by: Matthias Brugger <matthias....@gmail.com>

  drivers/iommu/mtk_iommu.c | 13 ++++++++++---
  1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index c3043d8754e3..c036df1c49ca 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -557,6 +557,11 @@ static int compare_of(struct device *dev, void *data)
        return dev->of_node == data;
  }

+static void release_of(struct device *dev, void *data)
+{
+       of_node_put(data);
+}
+
  static int mtk_iommu_bind(struct device *dev)
  {
        struct mtk_iommu_data *data = dev_get_drvdata(dev);
@@ -630,17 +635,19 @@ static int mtk_iommu_probe(struct platform_device *pdev)
                        continue;

                plarbdev = of_find_device_by_node(larbnode);
-               of_node_put(larbnode);
                if (!plarbdev) {
                        plarbdev = of_platform_device_create(
                                                larbnode, NULL,
                                                platform_bus_type.dev_root);
-                       if (!plarbdev)
+                       if (!plarbdev) {
+                               of_node_put(larbnode);
                                return -EPROBE_DEFER;
+                       }
                }
                data->smi_imu.larb_imu[i].dev = &plarbdev->dev;

-               component_match_add(dev, &match, compare_of, larbnode);
+               component_match_add_release(dev, &match, release_of,
+                                           compare_of, larbnode);
        }

        platform_set_drvdata(pdev, data);

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