The reference 'child' in the iteration of for_each_available_child_of_node()
is only escaped out into a local variable which is only used to check
its value. So we still need to the of_node_put() when breaking of the
for_each_available_child_of_node() which will automatically increase
and decrease the refcount.
Fixes: ca454bd42dc2 ("drm/pl111: Support the Versatile Express")
Signed-off-by: Liang He <windhl@xxxxxxx>
---
As 'Check-after-Put' has been widely accepted in kernel source, we just
use it. If the maintainer thinks it is harmful, I'd like also to use
'Check-and-Put' coding style but with a bit more work.
drivers/gpu/drm/pl111/pl111_versatile.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/pl111/pl111_versatile.c b/drivers/gpu/drm/pl111/pl111_versatile.c
index bdd883f4f0da..963a5d5e6987 100644
--- a/drivers/gpu/drm/pl111/pl111_versatile.c
+++ b/drivers/gpu/drm/pl111/pl111_versatile.c
@@ -402,6 +402,7 @@ static int pl111_vexpress_clcd_init(struct device *dev, struct device_node *np,
if (of_device_is_compatible(child, "arm,pl111")) {
has_coretile_clcd = true;
ct_clcd = child;
+ of_node_put(child);
break;
}
if (of_device_is_compatible(child, "arm,hdlcd")) {
--
2.25.1
