From: Dan Carpenter <dan.carpenter@oracle.com>
To: Rob Herring <robh+dt@kernel.org>, Frank Rowand <frowand.list@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org
Subject: [PATCH] of: drop a reference on error in __of_attach_node_sysfs()
Date: Mon, 18 May 2020 14:30:21 +0300 [thread overview]
Message-ID: <20200518113021.GB48709@mwanda> (raw)
We add a new of_node_get() to this function, but we should drop the
reference if kobject_add().
Fixes: 5b2c2f5a0ea3 ("of: overlay: add missing of_node_get() in __of_attach_node_sysfs")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
From static analysis. Maybe we should just call of_node_get() right
before we return 0?
drivers/of/kobj.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/of/kobj.c b/drivers/of/kobj.c
index c72eef988041..a90dc4b3b060 100644
--- a/drivers/of/kobj.c
+++ b/drivers/of/kobj.c
@@ -138,8 +138,10 @@ int __of_attach_node_sysfs(struct device_node *np)
rc = kobject_add(&np->kobj, parent, "%s", name);
kfree(name);
- if (rc)
+ if (rc) {
+ of_node_put(np);
return rc;
+ }
for_each_property_of_node(np, pp)
__of_add_property_sysfs(np, pp);
--
2.26.2
next reply other threads:[~2020-05-18 11:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-18 11:30 Dan Carpenter [this message]
2020-05-20 10:06 ` [PATCH] of: drop a reference on error in __of_attach_node_sysfs() Michael Ellerman
2020-05-20 12:04 ` [PATCH v2] of: Fix a refcounting bug " Dan Carpenter
2020-05-27 18:40 ` Rob Herring
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