linux-kernel - [PATCH] drivers: soc: tegra: fuse: Add missing of_node

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Date:   Wed, 15 Jun 2022 20:32:32 +0800
From:   Liang He <windhl@....com>
To:     thierry.reding@...il.com, jonathanh@...dia.com
Cc:     linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        windhl@....com
Subject: [PATCH] drivers: soc: tegra: fuse: Add missing of_node_put() in tegra-apbmisc.c

In tegra_init_apbmisc(), of_find_matching_node() will return a node
pointer with refcount incremented. We should use of_node_put in each
fail path or when it is not used anymore.

Signed-off-by: Liang He <windhl@....com>
---
 drivers/soc/tegra/fuse/tegra-apbmisc.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/tegra/fuse/tegra-apbmisc.c b/drivers/soc/tegra/fuse/tegra-apbmisc.c
index 590c862538d0..24e54e766581 100644
--- a/drivers/soc/tegra/fuse/tegra-apbmisc.c
+++ b/drivers/soc/tegra/fuse/tegra-apbmisc.c
@@ -182,12 +182,12 @@ void __init tegra_init_apbmisc(void)
 		 */
 		if (of_address_to_resource(np, 0, &apbmisc) < 0) {
 			pr_err("failed to get APBMISC registers\n");
-			return;
+			goto out_put;
 		}
 
 		if (of_address_to_resource(np, 1, &straps) < 0) {
 			pr_err("failed to get strapping options registers\n");
-			return;
+			goto out_put;
 		}
 	}
 
@@ -208,4 +208,7 @@ void __init tegra_init_apbmisc(void)
 	}
 
 	long_ram_code = of_property_read_bool(np, "nvidia,long-ram-code");
+
+out_put:
+	of_node_put(np);
 }
-- 
2.25.1