Add an of_node_put when a tested device node is not available.
The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):
// <smpl>
@@
identifier f;
local idexpression e;
expression x;
@@
e = f(...);
... when != of_node_put(e)
when != x = e
when != e = x
when any
if (<+...of_device_is_available(e)...+>) {
... when != of_node_put(e)
(
return e;
|
+ of_node_put(e);
return ...;
)
}
// </smpl>
Fixes: a9daaba2965e8 ("soc: Add Amlogic SoC Information driver")
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
return -ENODEV;
/* check if interface is enabled */
- if (!of_device_is_available(np))
+ if (!of_device_is_available(np)) {
+ of_node_put(np);
return -ENODEV;
+ }
/* check if chip-id is available */
if (!of_property_read_bool(np, "amlogic,has-chip-id"))