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@xxxxxxx> --- 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", ®); - 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; -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
