From: Weigang He <geoffreyhe2@gmail.com>
To: tony@atomide.com, aaro.koskinen@iki.fi, andreas@kemnade.info,
khilman@baylibre.com, rogerq@kernel.org
Cc: linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org,
Weigang He <geoffreyhe2@gmail.com>,
stable@vger.kernel.org
Subject: [PATCH] bus: ti-sysc: fix reference count leak in sysc_init_static_data()
Date: Sat, 17 Jan 2026 06:22:35 +0000 [thread overview]
Message-ID: <20260117062235.435174-1-geoffreyhe2@gmail.com> (raw)
of_find_node_by_path() returns a device_node with refcount incremented.
The reference to the "/ocp" node is acquired for a WARN_ONCE check but
is never released with of_node_put(), causing a reference count leak.
Add of_node_put(np) after the WARN_ONCE check to properly release the
"/ocp" node reference.
Fixes: 5f7259a578e9 ("bus: ti-sysc: Check for old incomplete dtb")
Cc: stable@vger.kernel.org
Signed-off-by: Weigang He <geoffreyhe2@gmail.com>
---
drivers/bus/ti-sysc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 610354ce7f8f0..fd631a9889c1e 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -3014,6 +3014,7 @@ static int sysc_init_static_data(struct sysc *ddata)
np = of_find_node_by_path("/ocp");
WARN_ONCE(np && of_device_is_compatible(np, "simple-bus"),
"ti-sysc: Incomplete old dtb, please update\n");
+ of_node_put(np);
break;
default:
break;
--
2.34.1
next reply other threads:[~2026-01-17 6:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-17 6:22 Weigang He [this message]
2026-01-22 8:35 ` [PATCH] bus: ti-sysc: fix reference count leak in sysc_init_static_data() Andreas Kemnade
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