From: Vadym Kochan <vadym.koc...@plvision.eu>
[ Upstream commit b1c194dcdb1425fa59eec61ab927cfff33096149 ]
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.koc...@plvision.eu>
Signed-off-by: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>
Link:
https://lore.kernel.org/r/20200917134437.16637-5-srinivas.kandaga...@linaro.org
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
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 927eb5f6003f0..394e75dede725 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -823,6 +823,7 @@ 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)
@@ -832,7 +833,9 @@ 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
--
2.25.1
