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authorJulia Lawall <Julia.Lawall@lip6.fr>2015-12-21 19:39:47 +0300
committerLinus Walleij <linus.walleij@linaro.org>2015-12-22 15:47:54 +0300
commitf7a81b7f4e9830323a7bbee8c4c7ab4c7c7ff6f4 (patch)
tree3a8d3efbc18a50f22b5dc3eaa4b981bddb1187be /drivers/pinctrl
parentd0b3ed4160201930b505ed9dedc4f80780ad4ff1 (diff)
downloadlinux-f7a81b7f4e9830323a7bbee8c4c7ab4c7c7ff6f4.tar.xz
pinctrl: rockchip: 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> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/pinctrl-rockchip.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index faab36ec6de8..91288265e856 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -1292,8 +1292,10 @@ static int rockchip_pinctrl_parse_functions(struct device_node *np,
func->groups[i] = child->name;
grp = &info->groups[grp_index++];
ret = rockchip_pinctrl_parse_groups(child, grp, info, i++);
- if (ret)
+ if (ret) {
+ of_node_put(child);
return ret;
+ }
}
return 0;
@@ -1338,6 +1340,7 @@ static int rockchip_pinctrl_parse_dt(struct platform_device *pdev,
ret = rockchip_pinctrl_parse_functions(child, info, i++);
if (ret) {
dev_err(&pdev->dev, "failed to parse function\n");
+ of_node_put(child);
return ret;
}
}