[PATCH 3/5] soc: ti: knav_dma: add missing of_node_put

2018-05-23 Thread Julia Lawall
The device node iterators perform an of_node_get on each iteration, so a
jump out of the loop requires an of_node_put.

The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):

// 
@@
expression root,e;
local idexpression child;
iterator name for_each_child_of_node;
@@

 for_each_child_of_node(root, child) {
   ... when != of_node_put(child)
   when != e = child
+  of_node_put(child);
?  break;
   ...
}
... when != child
// 

Signed-off-by: Julia Lawall 

---
 drivers/soc/ti/knav_dma.c |1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soc/ti/knav_dma.c b/drivers/soc/ti/knav_dma.c
index 224d7dd..bda3173 100644
--- a/drivers/soc/ti/knav_dma.c
+++ b/drivers/soc/ti/knav_dma.c
@@ -768,6 +768,7 @@ static int knav_dma_probe(struct platform_device *pdev)
ret = dma_init(node, child);
if (ret) {
dev_err(>dev, "init failed with %d\n", ret);
+   of_node_put(child);
break;
}
}



[PATCH 3/5] soc: ti: knav_dma: add missing of_node_put

2018-05-23 Thread Julia Lawall
The device node iterators perform an of_node_get on each iteration, so a
jump out of the loop requires an of_node_put.

The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):

// 
@@
expression root,e;
local idexpression child;
iterator name for_each_child_of_node;
@@

 for_each_child_of_node(root, child) {
   ... when != of_node_put(child)
   when != e = child
+  of_node_put(child);
?  break;
   ...
}
... when != child
// 

Signed-off-by: Julia Lawall 

---
 drivers/soc/ti/knav_dma.c |1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soc/ti/knav_dma.c b/drivers/soc/ti/knav_dma.c
index 224d7dd..bda3173 100644
--- a/drivers/soc/ti/knav_dma.c
+++ b/drivers/soc/ti/knav_dma.c
@@ -768,6 +768,7 @@ static int knav_dma_probe(struct platform_device *pdev)
ret = dma_init(node, child);
if (ret) {
dev_err(>dev, "init failed with %d\n", ret);
+   of_node_put(child);
break;
}
}