From: Vadym Kochan <vadym.kochan@plvision.eu>
To: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org
Cc: Vadym Kochan <vadym.kochan@plvision.eu>
Subject: [PATCH] nvmem: core: fix missing of_node_put() in of_nvmem_device_get()
Date: Wed, 16 Sep 2020 00:48:22 +0300 [thread overview]
Message-ID: <20200915214822.6756-1-vadym.kochan@plvision.eu> (raw)
of_parse_phandle() returns device_node with incremented ref count
which needs to be decremented by of_node_put() when device_node
is not used.
Fixes: e2a5402ec7c6 ("nvmem: Add nvmem_device based consumer apis.")
Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
---
drivers/nvmem/core.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 6cd3edb2eaf6..204a515d8bc5 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -835,6 +835,7 @@ struct nvmem_device *of_nvmem_device_get(struct device_node *np, const char *id)
{
struct device_node *nvmem_np;
+ struct nvmem_device *nvmem;
int index = 0;
if (id)
@@ -844,7 +845,9 @@ struct nvmem_device *of_nvmem_device_get(struct device_node *np, const char *id)
if (!nvmem_np)
return ERR_PTR(-ENOENT);
- return __nvmem_device_get(nvmem_np, device_match_of_node);
+ nvmem = __nvmem_device_get(nvmem_np, device_match_of_node);
+ of_node_put(nvmem_np);
+ return nvmem;
}
EXPORT_SYMBOL_GPL(of_nvmem_device_get);
#endif
--
2.17.1
next reply other threads:[~2020-09-15 21:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-15 21:48 Vadym Kochan [this message]
2020-09-16 8:46 ` [PATCH] nvmem: core: fix missing of_node_put() in of_nvmem_device_get() Srinivas Kandagatla
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