for_each_child_of_node performs an of_node_get on each iteration, so
to break out of the loop an of_node_put is required.
Found using Coccinelle. The semantic patch used for this is as follows:
// <smpl>
@@
expression e;
local idexpression n;
@@
for_each_child_of_node(..., n) {
... when != of_node_put(n)
when != e = n
(
return n;
|
+ of_node_put(n);
? return ...;
)
...
}
// </smpl
Signed-off-by: Amitoj Kaur Chawla <amitoj1606@xxxxxxxxx>
---
Changes in v2:
-None
There is also an extra of_node_put() before a continue in the same loop
on line 212 of this file which should be deleted. Julia Lawall has
already sent a patch to delete this but if preferred I can send one patch to
do both the changes.
drivers/memory/tegra/mc.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c
index a1ae0cc..7dd42e7 100644
--- a/drivers/memory/tegra/mc.c
+++ b/drivers/memory/tegra/mc.c
@@ -186,8 +186,10 @@ static int load_timings(struct tegra_mc *mc, struct device_node *node)
timing = &mc->timings[i++];
err = load_one_timing(mc, timing, child);
- if (err)
+ if (err) {
+ of_node_put(child);
return err;
+ }
}
return 0;
@@ -212,9 +214,9 @@ static int tegra_mc_setup_timings(struct tegra_mc *mc)
}
err = load_timings(mc, node);
+ of_node_put(node);
if (err)
return err;
- of_node_put(node);
break;
}
--
1.9.1
--
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