pinctrl-tegra: add missing of_node_put

for_each_child_of_node performs an of_node_get on each iteration, so a
return from the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

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

 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>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Julia Lawall 2015-12-21 17:39:44 +01:00 committed by Linus Walleij
parent 0eccc9cb4c
commit 21a8fe8863
2 changed files with 4 additions and 1 deletions

View File

@ -253,8 +253,10 @@ static int tegra_xusb_padctl_dt_node_to_map(struct pinctrl_dev *pinctrl,
err = tegra_xusb_padctl_parse_subnode(padctl, np, maps,
&reserved_maps,
num_maps);
if (err < 0)
if (err < 0) {
of_node_put(np);
return err;
}
}
return 0;

View File

@ -217,6 +217,7 @@ static int tegra_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
if (ret < 0) {
pinctrl_utils_dt_free_map(pctldev, *map,
*num_maps);
of_node_put(np);
return ret;
}
}