[PATCH] dma: qcom: hidma_mgmt: Add of_node_put() before goto

[Nishka Dasgupta <nishkadg.linux@gmail.com>]

Each iteration of for_each_available_child_of_node puts the previous
node, but in the case of a goto from the middle of the loop, there is
no put, thus causing a memory leak. Add an of_node_put before the
goto in 4 places.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
---
 drivers/dma/qcom/hidma_mgmt.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/qcom/hidma_mgmt.c b/drivers/dma/qcom/hidma_mgmt.c
index 3022d66e7a33..209adc6ceabe 100644
--- a/drivers/dma/qcom/hidma_mgmt.c
+++ b/drivers/dma/qcom/hidma_mgmt.c
@@ -362,16 +362,22 @@ static int __init hidma_mgmt_of_populate_channels(struct device_node *np)
 		struct platform_device *new_pdev;
 
 		ret = of_address_to_resource(child, 0, &res[0]);
-		if (!ret)
+		if (!ret) {
+			of_node_put(child);
 			goto out;
+		}
 
 		ret = of_address_to_resource(child, 1, &res[1]);
-		if (!ret)
+		if (!ret) {
+			of_node_put(child);
 			goto out;
+		}
 
 		ret = of_irq_to_resource(child, 0, &res[2]);
-		if (ret <= 0)
+		if (ret <= 0) {
+			of_node_put(child);
 			goto out;
+		}
 
 		memset(&pdevinfo, 0, sizeof(pdevinfo));
 		pdevinfo.fwnode = &child->fwnode;
@@ -386,6 +392,7 @@ static int __init hidma_mgmt_of_populate_channels(struct device_node *np)
 		new_pdev = platform_device_register_full(&pdevinfo);
 		if (IS_ERR(new_pdev)) {
 			ret = PTR_ERR(new_pdev);
+			of_node_put(child);
 			goto out;
 		}
 		of_node_get(child);
-- 
2.19.1