of_find_node_by_name() returns a node pointer with refcount incremented, use
of_node_put() on it when done.
of_find_node_by_name() will call of_node_put() against the node pass to from
parameter, thus we also need to call of_node_get(from) before calling
of_find_node_by_name().
Signed-off-by: Axel Lin <axel....@ingics.com>
---
v2:
need to call of_node_get(pdev->dev.parent->of_node) before calling
of_find_node_by_name().
drivers/video/backlight/88pm860x_bl.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/video/backlight/88pm860x_bl.c
b/drivers/video/backlight/88pm860x_bl.c
index c072ed9..2cd6350 100644
--- a/drivers/video/backlight/88pm860x_bl.c
+++ b/drivers/video/backlight/88pm860x_bl.c
@@ -165,8 +165,10 @@ static int pm860x_backlight_dt_init(struct platform_device
*pdev,
struct pm860x_backlight_data *data,
char *name)
{
- struct device_node *nproot = pdev->dev.parent->of_node, *np;
+ struct device_node *nproot, *np;
int iset = 0;
+
+ nproot = of_node_get(pdev->dev.parent->of_node);
if (!nproot)
return -ENODEV;
nproot = of_find_node_by_name(nproot, "backlights");
@@ -184,6 +186,7 @@ static int pm860x_backlight_dt_init(struct platform_device
*pdev,
break;
}
}
+ of_node_put(nproot);
return 0;
}
#else
--
1.7.9.5
--
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