From: Miaoqian Lin <linmq006@gmail.com>
To: Michael Ellerman <mpe@ellerman.id.au>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
Miaoqian Lin <linmq006@gmail.com>,
Nicholas Piggin <npiggin@gmail.com>,
Liu Gang <Gang.Liu@freescale.com>,
Jin Qing <b24347@freescale.com>,
Alexandre Bounine <alexandre.bounine@idt.com>,
Li Yang <leoyang.li@nxp.com>,
Kumar Gala <galak@kernel.crashing.org>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH] powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup
Date: Thu, 12 May 2022 16:37:18 +0400 [thread overview]
Message-ID: <20220512123724.62931-1-linmq006@gmail.com> (raw)
of_parse_phandle() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.
Fixes: abc3aeae3aaa ("fsl-rio: Add two ports and rapidio message units support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
arch/powerpc/sysdev/fsl_rio.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c
index ff7906b48ca1..1bfc9afa8a1a 100644
--- a/arch/powerpc/sysdev/fsl_rio.c
+++ b/arch/powerpc/sysdev/fsl_rio.c
@@ -505,8 +505,10 @@ int fsl_rio_setup(struct platform_device *dev)
if (rc) {
dev_err(&dev->dev, "Can't get %pOF property 'reg'\n",
rmu_node);
+ of_node_put(rmu_node);
goto err_rmu;
}
+ of_node_put(rmu_node);
rmu_regs_win = ioremap(rmu_regs.start, resource_size(&rmu_regs));
if (!rmu_regs_win) {
dev_err(&dev->dev, "Unable to map rmu register window\n");
--
2.25.1
next reply other threads:[~2022-05-12 12:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-12 12:37 Miaoqian Lin [this message]
2022-05-24 11:09 ` [PATCH] powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup Michael Ellerman
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