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Groups > linux.kernel > #1243882
| From | Julia Lawall <Julia.Lawall@lip6.fr> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 2/5] power_supply: charger-manager: add missing of_node_put |
| Date | 2015-10-10 14:50 +0200 |
| Message-ID | <qi1L3-18e-7@gated-at.bofh.it> (permalink) |
| References | <qi1L3-18e-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
for_each_child_of_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.
The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):
// <smpl>
@@
expression root,e;
local idexpression child;
@@
for_each_child_of_node(root, child) {
... when != of_node_put(child)
when != e = child
(
return child;
|
+ of_node_put(child);
? return ...;
)
...
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
---
drivers/power/charger-manager.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c
index 907293e..1ea5d1a 100644
--- a/drivers/power/charger-manager.c
+++ b/drivers/power/charger-manager.c
@@ -1581,8 +1581,10 @@ static struct charger_desc *of_cm_parse_desc(struct device *dev)
cables = devm_kzalloc(dev, sizeof(*cables)
* chg_regs->num_cables,
GFP_KERNEL);
- if (!cables)
+ if (!cables) {
+ of_node_put(child);
return ERR_PTR(-ENOMEM);
+ }
chg_regs->cables = cables;
--
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[PATCH 2/5] power_supply: charger-manager: add missing of_node_put Julia Lawall <Julia.Lawall@lip6.fr> - 2015-10-10 14:50 +0200 Re: [PATCH 2/5] power_supply: charger-manager: add missing of_node_put Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-10-12 04:30 +0200 Re: [PATCH 2/5] power_supply: charger-manager: add missing of_node_put Sebastian Reichel <sre@kernel.org> - 2015-10-15 11:00 +0200
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