From: Vadym Kochan vadym.kochan@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.kochan@plvision.eu Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Link: https://lore.kernel.org/r/20200917134437.16637-5-srinivas.kandagatla@linaro.... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@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 6cd3edb2eaf65..204a515d8bc5d 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