drm/tegra: dc: Add missing of_node_put()
for_each_matching_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;
@@
for_each_matching_node(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: Thierry Reding <treding@nvidia.com>
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index e9f24a8..ea174b5 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -1952,8 +1952,10 @@
* cases where only a single display controller is used.
*/
for_each_matching_node(np, tegra_dc_of_match) {
- if (np == dc->dev->of_node)
+ if (np == dc->dev->of_node) {
+ of_node_put(np);
break;
+ }
value++;
}