[PATCH] soc: rockchip: grf: fix device node refcount leak in error path

[xiaopeitux@foxmail.com]

From: Pei Xiao <xiaopei01@kylinos.cn>

The for_each_matching_node_and_match() macro automatically manages device
node reference counts during normal iteration. However, when breaking out
of the loop early with return, the current iteration's node is not
automatically released, leading to a reference count leak.

Fix this by adding of_node_put() before returning from the loop
when fails.

Fixes: 75fb63ae0312 ("soc: rockchip: grf: Support multiple grf to be handled")
Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn>
---
 drivers/soc/rockchip/grf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soc/rockchip/grf.c b/drivers/soc/rockchip/grf.c
index 04937c40da47..b459607c118a 100644
--- a/drivers/soc/rockchip/grf.c
+++ b/drivers/soc/rockchip/grf.c
@@ -231,6 +231,7 @@ static int __init rockchip_grf_init(void)
 		grf = syscon_node_to_regmap(np);
 		if (IS_ERR(grf)) {
 			pr_err("%s: could not get grf syscon\n", __func__);
+			of_node_put(np);
 			return PTR_ERR(grf);
 		}
 
-- 
2.25.1