leds: 88pm860x: add missing of_node_put
authorJulia Lawall <Julia.Lawall@lip6.fr>
Sat, 24 Oct 2015 14:42:30 +0000 (16:42 +0200)
committerJacek Anaszewski <j.anaszewski@samsung.com>
Tue, 3 Nov 2015 08:00:06 +0000 (09:00 +0100)
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.

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

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

 for_each_child_of_node(r,n) {
   ...
(
   of_node_put(n);
|
   e = n
|
+  of_node_put(n);
?  break;
)
   ...
 }
... when != n
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
drivers/leds/leds-88pm860x.c

index 1497a09166d6e44fb7e76edf002c0578a10aabf5..7870840e7cc9a43543ab72262082bce05e150c11 100644 (file)
@@ -142,6 +142,7 @@ static int pm860x_led_dt_init(struct platform_device *pdev,
                        of_property_read_u32(np, "marvell,88pm860x-iset",
                                             &iset);
                        data->iset = PM8606_LED_CURRENT(iset);
+                       of_node_put(np);
                        break;
                }
        }