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Subject[PATCH 2/2 v2] leds: tlc591xx: add missing of_node_put
Date
for_each_child_of_node performs an of_node_get on each iteration, so a
return from the loop requires an of_node_put.

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

// <smpl>
@@
local idexpression n;
expression e,e1;
iterator name for_each_child_of_node;
@@

for_each_child_of_node(e1,n) {
...
(
of_node_put(n);
|
e = n
|
return n;
|
+ of_node_put(n);
? return ...;
)
...
}
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
drivers/leds/leds-tlc591xx.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/leds/leds-tlc591xx.c b/drivers/leds/leds-tlc591xx.c
index fcc87ee..f5357f6 100644
--- a/drivers/leds/leds-tlc591xx.c
+++ b/drivers/leds/leds-tlc591xx.c
@@ -230,11 +230,15 @@ struct tlc591xx {

for_each_child_of_node(np, child) {
err = of_property_read_u32(child, "reg", &reg);
- if (err)
+ if (err) {
+ of_node_put(child);
return err;
+ }
if (reg < 0 || reg >= tlc591xx->max_leds ||
- priv->leds[reg].active)
+ priv->leds[reg].active) {
+ of_node_put(child);
return -EINVAL;
+ }
priv->leds[reg].active = true;
priv->leds[reg].ldev.name =
of_get_property(child, "label", NULL) ? : child->name;
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